whats a thesis sentence

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Tips and Examples for Writing Thesis Statements

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Tips for Writing Your Thesis Statement

1. Determine what kind of paper you are writing:

• An analytical paper breaks down an issue or an idea into its component parts, evaluates the issue or idea, and presents this breakdown and evaluation to the audience.
• An expository (explanatory) paper explains something to the audience.
• An argumentative paper makes a claim about a topic and justifies this claim with specific evidence. The claim could be an opinion, a policy proposal, an evaluation, a cause-and-effect statement, or an interpretation. The goal of the argumentative paper is to convince the audience that the claim is true based on the evidence provided.

If you are writing a text that does not fall under these three categories (e.g., a narrative), a thesis statement somewhere in the first paragraph could still be helpful to your reader.

2. Your thesis statement should be specific—it should cover only what you will discuss in your paper and should be supported with specific evidence.

3. The thesis statement usually appears at the end of the first paragraph of a paper.

4. Your topic may change as you write, so you may need to revise your thesis statement to reflect exactly what you have discussed in the paper.

Thesis Statement Examples

Example of an analytical thesis statement:

The paper that follows should:

• Explain the analysis of the college admission process
• Explain the challenge facing admissions counselors

Example of an expository (explanatory) thesis statement:

• Explain how students spend their time studying, attending class, and socializing with peers

Example of an argumentative thesis statement:

• Present an argument and give evidence to support the claim that students should pursue community projects before entering college

Thesis Statements

What this handout is about.

This handout describes what a thesis statement is, how thesis statements work in your writing, and how you can craft or refine one for your draft.

Introduction

Writing in college often takes the form of persuasion—convincing others that you have an interesting, logical point of view on the subject you are studying. Persuasion is a skill you practice regularly in your daily life. You persuade your roommate to clean up, your parents to let you borrow the car, your friend to vote for your favorite candidate or policy. In college, course assignments often ask you to make a persuasive case in writing. You are asked to convince your reader of your point of view. This form of persuasion, often called academic argument, follows a predictable pattern in writing. After a brief introduction of your topic, you state your point of view on the topic directly and often in one sentence. This sentence is the thesis statement, and it serves as a summary of the argument you’ll make in the rest of your paper.

What is a thesis statement?

A thesis statement:

• tells the reader how you will interpret the significance of the subject matter under discussion.
• is a road map for the paper; in other words, it tells the reader what to expect from the rest of the paper.
• directly answers the question asked of you. A thesis is an interpretation of a question or subject, not the subject itself. The subject, or topic, of an essay might be World War II or Moby Dick; a thesis must then offer a way to understand the war or the novel.
• makes a claim that others might dispute.
• is usually a single sentence near the beginning of your paper (most often, at the end of the first paragraph) that presents your argument to the reader. The rest of the paper, the body of the essay, gathers and organizes evidence that will persuade the reader of the logic of your interpretation.

If your assignment asks you to take a position or develop a claim about a subject, you may need to convey that position or claim in a thesis statement near the beginning of your draft. The assignment may not explicitly state that you need a thesis statement because your instructor may assume you will include one. When in doubt, ask your instructor if the assignment requires a thesis statement. When an assignment asks you to analyze, to interpret, to compare and contrast, to demonstrate cause and effect, or to take a stand on an issue, it is likely that you are being asked to develop a thesis and to support it persuasively. (Check out our handout on understanding assignments for more information.)

How do I create a thesis?

A thesis is the result of a lengthy thinking process. Formulating a thesis is not the first thing you do after reading an essay assignment. Before you develop an argument on any topic, you have to collect and organize evidence, look for possible relationships between known facts (such as surprising contrasts or similarities), and think about the significance of these relationships. Once you do this thinking, you will probably have a “working thesis” that presents a basic or main idea and an argument that you think you can support with evidence. Both the argument and your thesis are likely to need adjustment along the way.

Writers use all kinds of techniques to stimulate their thinking and to help them clarify relationships or comprehend the broader significance of a topic and arrive at a thesis statement. For more ideas on how to get started, see our handout on brainstorming .

How do I know if my thesis is strong?

If there’s time, run it by your instructor or make an appointment at the Writing Center to get some feedback. Even if you do not have time to get advice elsewhere, you can do some thesis evaluation of your own. When reviewing your first draft and its working thesis, ask yourself the following :

• Do I answer the question? Re-reading the question prompt after constructing a working thesis can help you fix an argument that misses the focus of the question. If the prompt isn’t phrased as a question, try to rephrase it. For example, “Discuss the effect of X on Y” can be rephrased as “What is the effect of X on Y?”
• Have I taken a position that others might challenge or oppose? If your thesis simply states facts that no one would, or even could, disagree with, it’s possible that you are simply providing a summary, rather than making an argument.
• Is my thesis statement specific enough? Thesis statements that are too vague often do not have a strong argument. If your thesis contains words like “good” or “successful,” see if you could be more specific: why is something “good”; what specifically makes something “successful”?
• Does my thesis pass the “So what?” test? If a reader’s first response is likely to  be “So what?” then you need to clarify, to forge a relationship, or to connect to a larger issue.
• Does my essay support my thesis specifically and without wandering? If your thesis and the body of your essay do not seem to go together, one of them has to change. It’s okay to change your working thesis to reflect things you have figured out in the course of writing your paper. Remember, always reassess and revise your writing as necessary.
• Does my thesis pass the “how and why?” test? If a reader’s first response is “how?” or “why?” your thesis may be too open-ended and lack guidance for the reader. See what you can add to give the reader a better take on your position right from the beginning.

Suppose you are taking a course on contemporary communication, and the instructor hands out the following essay assignment: “Discuss the impact of social media on public awareness.” Looking back at your notes, you might start with this working thesis:

Social media impacts public awareness in both positive and negative ways.

You can use the questions above to help you revise this general statement into a stronger thesis.

• Do I answer the question? You can analyze this if you rephrase “discuss the impact” as “what is the impact?” This way, you can see that you’ve answered the question only very generally with the vague “positive and negative ways.”
• Have I taken a position that others might challenge or oppose? Not likely. Only people who maintain that social media has a solely positive or solely negative impact could disagree.
• Is my thesis statement specific enough? No. What are the positive effects? What are the negative effects?
• Does my thesis pass the “how and why?” test? No. Why are they positive? How are they positive? What are their causes? Why are they negative? How are they negative? What are their causes?
• Does my thesis pass the “So what?” test? No. Why should anyone care about the positive and/or negative impact of social media?

After thinking about your answers to these questions, you decide to focus on the one impact you feel strongly about and have strong evidence for:

Because not every voice on social media is reliable, people have become much more critical consumers of information, and thus, more informed voters.

This version is a much stronger thesis! It answers the question, takes a specific position that others can challenge, and it gives a sense of why it matters.

Let’s try another. Suppose your literature professor hands out the following assignment in a class on the American novel: Write an analysis of some aspect of Mark Twain’s novel Huckleberry Finn. “This will be easy,” you think. “I loved Huckleberry Finn!” You grab a pad of paper and write:

Mark Twain’s Huckleberry Finn is a great American novel.

You begin to analyze your thesis:

• Do I answer the question? No. The prompt asks you to analyze some aspect of the novel. Your working thesis is a statement of general appreciation for the entire novel.

Think about aspects of the novel that are important to its structure or meaning—for example, the role of storytelling, the contrasting scenes between the shore and the river, or the relationships between adults and children. Now you write:

In Huckleberry Finn, Mark Twain develops a contrast between life on the river and life on the shore.

• Do I answer the question? Yes!
• Have I taken a position that others might challenge or oppose? Not really. This contrast is well-known and accepted.
• Is my thesis statement specific enough? It’s getting there–you have highlighted an important aspect of the novel for investigation. However, it’s still not clear what your analysis will reveal.
• Does my thesis pass the “how and why?” test? Not yet. Compare scenes from the book and see what you discover. Free write, make lists, jot down Huck’s actions and reactions and anything else that seems interesting.
• Does my thesis pass the “So what?” test? What’s the point of this contrast? What does it signify?”

After examining the evidence and considering your own insights, you write:

Through its contrasting river and shore scenes, Twain’s Huckleberry Finn suggests that to find the true expression of American democratic ideals, one must leave “civilized” society and go back to nature.

This final thesis statement presents an interpretation of a literary work based on an analysis of its content. Of course, for the essay itself to be successful, you must now present evidence from the novel that will convince the reader of your interpretation.

Works consulted

We consulted these works while writing this handout. This is not a comprehensive list of resources on the handout’s topic, and we encourage you to do your own research to find additional publications. Please do not use this list as a model for the format of your own reference list, as it may not match the citation style you are using. For guidance on formatting citations, please see the UNC Libraries citation tutorial . We revise these tips periodically and welcome feedback.

Anson, Chris M., and Robert A. Schwegler. 2010. The Longman Handbook for Writers and Readers , 6th ed. New York: Longman.

Lunsford, Andrea A. 2015. The St. Martin’s Handbook , 8th ed. Boston: Bedford/St Martin’s.

Ramage, John D., John C. Bean, and June Johnson. 2018. The Allyn & Bacon Guide to Writing , 8th ed. New York: Pearson.

Ruszkiewicz, John J., Christy Friend, Daniel Seward, and Maxine Hairston. 2010. The Scott, Foresman Handbook for Writers , 9th ed. Boston: Pearson Education.

You may reproduce it for non-commercial use if you use the entire handout and attribute the source: The Writing Center, University of North Carolina at Chapel Hill

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25 Thesis Statement Examples

Chris Drew (PhD)

Dr. Chris Drew is the founder of the Helpful Professor. He holds a PhD in education and has published over 20 articles in scholarly journals. He is the former editor of the Journal of Learning Development in Higher Education. [Image Descriptor: Photo of Chris]

Learn about our Editorial Process

A thesis statement is needed in an essay or dissertation . There are multiple types of thesis statements – but generally we can divide them into expository and argumentative. An expository statement is a statement of fact (common in expository essays and process essays) while an argumentative statement is a statement of opinion (common in argumentative essays and dissertations). Below are examples of each.

Strong Thesis Statement Examples

1. School Uniforms

“Mandatory school uniforms should be implemented in educational institutions as they promote a sense of equality, reduce distractions, and foster a focused and professional learning environment.”

Best For: Argumentative Essay or Debate

Read More: School Uniforms Pros and Cons

2. Nature vs Nurture

“This essay will explore how both genetic inheritance and environmental factors equally contribute to shaping human behavior and personality.”

Best For: Compare and Contrast Essay

Read More: Nature vs Nurture Debate

3. American Dream

“The American Dream, a symbol of opportunity and success, is increasingly elusive in today’s socio-economic landscape, revealing deeper inequalities in society.”

Best For: Persuasive Essay

Read More: What is the American Dream?

4. Social Media

“Social media has revolutionized communication and societal interactions, but it also presents significant challenges related to privacy, mental health, and misinformation.”

Best For: Expository Essay

Read More: The Pros and Cons of Social Media

5. Globalization

“Globalization has created a world more interconnected than ever before, yet it also amplifies economic disparities and cultural homogenization.”

Read More: Globalization Pros and Cons

6. Urbanization

“Urbanization drives economic growth and social development, but it also poses unique challenges in sustainability and quality of life.”

Read More: Learn about Urbanization

7. Immigration

“Immigration enriches receiving countries culturally and economically, outweighing any perceived social or economic burdens.”

Read More: Immigration Pros and Cons

8. Cultural Identity

“In a globalized world, maintaining distinct cultural identities is crucial for preserving cultural diversity and fostering global understanding, despite the challenges of assimilation and homogenization.”

Best For: Argumentative Essay

Read More: Learn about Cultural Identity

9. Technology

“Medical technologies in care institutions in Toronto has increased subjcetive outcomes for patients with chronic pain.”

Best For: Research Paper

10. Capitalism vs Socialism

“The debate between capitalism and socialism centers on balancing economic freedom and inequality, each presenting distinct approaches to resource distribution and social welfare.”

11. Cultural Heritage

“The preservation of cultural heritage is essential, not only for cultural identity but also for educating future generations, outweighing the arguments for modernization and commercialization.”

12. Pseudoscience

“Pseudoscience, characterized by a lack of empirical support, continues to influence public perception and decision-making, often at the expense of scientific credibility.”

Read More: Examples of Pseudoscience

13. Free Will

“The concept of free will is largely an illusion, with human behavior and decisions predominantly determined by biological and environmental factors.”

Read More: Do we have Free Will?

14. Gender Roles

“Traditional gender roles are outdated and harmful, restricting individual freedoms and perpetuating gender inequalities in modern society.”

Read More: What are Traditional Gender Roles?

15. Work-Life Ballance

“The trend to online and distance work in the 2020s led to improved subjective feelings of work-life balance but simultaneously increased self-reported loneliness.”

Read More: Work-Life Balance Examples

16. Universal Healthcare

“Universal healthcare is a fundamental human right and the most effective system for ensuring health equity and societal well-being, outweighing concerns about government involvement and costs.”

Read More: The Pros and Cons of Universal Healthcare

17. Minimum Wage

“The implementation of a fair minimum wage is vital for reducing economic inequality, yet it is often contentious due to its potential impact on businesses and employment rates.”

Read More: The Pros and Cons of Raising the Minimum Wage

18. Homework

“The homework provided throughout this semester has enabled me to achieve greater self-reflection, identify gaps in my knowledge, and reinforce those gaps through spaced repetition.”

Best For: Reflective Essay

Read More: Reasons Homework Should be Banned

19. Charter Schools

“Charter schools offer alternatives to traditional public education, promising innovation and choice but also raising questions about accountability and educational equity.”

Read More: The Pros and Cons of Charter Schools

20. Effects of the Internet

“The Internet has drastically reshaped human communication, access to information, and societal dynamics, generally with a net positive effect on society.”

Read More: The Pros and Cons of the Internet

21. Affirmative Action

“Affirmative action is essential for rectifying historical injustices and achieving true meritocracy in education and employment, contrary to claims of reverse discrimination.”

Best For: Essay

Read More: Affirmative Action Pros and Cons

22. Soft Skills

“Soft skills, such as communication and empathy, are increasingly recognized as essential for success in the modern workforce, and therefore should be a strong focus at school and university level.”

Read More: Soft Skills Examples

23. Moral Panic

“Moral panic, often fueled by media and cultural anxieties, can lead to exaggerated societal responses that sometimes overlook rational analysis and evidence.”

Read More: Moral Panic Examples

24. Freedom of the Press

“Freedom of the press is critical for democracy and informed citizenship, yet it faces challenges from censorship, media bias, and the proliferation of misinformation.”

Read More: Freedom of the Press Examples

25. Mass Media

“Mass media shapes public opinion and cultural norms, but its concentration of ownership and commercial interests raise concerns about bias and the quality of information.”

Best For: Critical Analysis

Read More: Mass Media Examples

Checklist: How to use your Thesis Statement

✅ Position: If your statement is for an argumentative or persuasive essay, or a dissertation, ensure it takes a clear stance on the topic. ✅ Specificity: It addresses a specific aspect of the topic, providing focus for the essay. ✅ Conciseness: Typically, a thesis statement is one to two sentences long. It should be concise, clear, and easily identifiable. ✅ Direction: The thesis statement guides the direction of the essay, providing a roadmap for the argument, narrative, or explanation. ✅ Evidence-based: While the thesis statement itself doesn’t include evidence, it sets up an argument that can be supported with evidence in the body of the essay. ✅ Placement: Generally, the thesis statement is placed at the end of the introduction of an essay.

Try These AI Prompts – Thesis Statement Generator!

One way to brainstorm thesis statements is to get AI to brainstorm some for you! Try this AI prompt:

💡 AI PROMPT FOR EXPOSITORY THESIS STATEMENT I am writing an essay on [TOPIC] and these are the instructions my teacher gave me: [INSTUCTIONS]. I want you to create an expository thesis statement that doesn’t argue a position, but demonstrates depth of knowledge about the topic.

💡 AI PROMPT FOR ARGUMENTATIVE THESIS STATEMENT I am writing an essay on [TOPIC] and these are the instructions my teacher gave me: [INSTRUCTIONS]. I want you to create an argumentative thesis statement that clearly takes a position on this issue.

💡 AI PROMPT FOR COMPARE AND CONTRAST THESIS STATEMENT I am writing a compare and contrast essay that compares [Concept 1] and [Concept2]. Give me 5 potential single-sentence thesis statements that remain objective.

• Chris Drew (PhD) https://helpfulprofessor.com/author/chris-drew-phd-2/ 10 Reasons you’re Perpetually Single
• Chris Drew (PhD) https://helpfulprofessor.com/author/chris-drew-phd-2/ 20 Montessori Toddler Bedrooms (Design Inspiration)
• Chris Drew (PhD) https://helpfulprofessor.com/author/chris-drew-phd-2/ 21 Montessori Homeschool Setups
• Chris Drew (PhD) https://helpfulprofessor.com/author/chris-drew-phd-2/ 101 Hidden Talents Examples

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How to Write a Strong Thesis Statement: 4 Steps + Examples

What’s Covered:

What is the purpose of a thesis statement, writing a good thesis statement: 4 steps, common pitfalls to avoid, where to get your essay edited for free.

When you set out to write an essay, there has to be some kind of point to it, right? Otherwise, your essay would just be a big jumble of word salad that makes absolutely no sense. An essay needs a central point that ties into everything else. That main point is called a thesis statement, and it’s the core of any essay or research paper.

You may hear about Master degree candidates writing a thesis, and that is an entire paper–not to be confused with the thesis statement, which is typically one sentence that contains your paper’s focus. 

Read on to learn more about thesis statements and how to write them. We’ve also included some solid examples for you to reference.

Typically the last sentence of your introductory paragraph, the thesis statement serves as the roadmap for your essay. When your reader gets to the thesis statement, they should have a clear outline of your main point, as well as the information you’ll be presenting in order to either prove or support your point. 

The thesis statement should not be confused for a topic sentence , which is the first sentence of every paragraph in your essay. If you need help writing topic sentences, numerous resources are available. Topic sentences should go along with your thesis statement, though.

Since the thesis statement is the most important sentence of your entire essay or paper, it’s imperative that you get this part right. Otherwise, your paper will not have a good flow and will seem disjointed. That’s why it’s vital not to rush through developing one. It’s a methodical process with steps that you need to follow in order to create the best thesis statement possible.

Step 1: Decide what kind of paper you’re writing

When you’re assigned an essay, there are several different types you may get. Argumentative essays are designed to get the reader to agree with you on a topic. Informative or expository essays present information to the reader. Analytical essays offer up a point and then expand on it by analyzing relevant information. Thesis statements can look and sound different based on the type of paper you’re writing. For example:

• Argumentative: The United States needs a viable third political party to decrease bipartisanship, increase options, and help reduce corruption in government.
• Informative: The Libertarian party has thrown off elections before by gaining enough support in states to get on the ballot and by taking away crucial votes from candidates.
• Analytical: An analysis of past presidential elections shows that while third party votes may have been the minority, they did affect the outcome of the elections in 2020, 2016, and beyond.

Step 2: Figure out what point you want to make

Once you know what type of paper you’re writing, you then need to figure out the point you want to make with your thesis statement, and subsequently, your paper. In other words, you need to decide to answer a question about something, such as:

• What impact did reality TV have on American society?
• How has the musical Hamilton affected perception of American history?
• Why do I want to major in [chosen major here]?

If you have an argumentative essay, then you will be writing about an opinion. To make it easier, you may want to choose an opinion that you feel passionate about so that you’re writing about something that interests you. For example, if you have an interest in preserving the environment, you may want to choose a topic that relates to that. 

If you’re writing your college essay and they ask why you want to attend that school, you may want to have a main point and back it up with information, something along the lines of:

“Attending Harvard University would benefit me both academically and professionally, as it would give me a strong knowledge base upon which to build my career, develop my network, and hopefully give me an advantage in my chosen field.”

Step 3: Determine what information you’ll use to back up your point

Once you have the point you want to make, you need to figure out how you plan to back it up throughout the rest of your essay. Without this information, it will be hard to either prove or argue the main point of your thesis statement. If you decide to write about the Hamilton example, you may decide to address any falsehoods that the writer put into the musical, such as:

“The musical Hamilton, while accurate in many ways, leaves out key parts of American history, presents a nationalist view of founding fathers, and downplays the racism of the times.”

Once you’ve written your initial working thesis statement, you’ll then need to get information to back that up. For example, the musical completely leaves out Benjamin Franklin, portrays the founding fathers in a nationalist way that is too complimentary, and shows Hamilton as a staunch abolitionist despite the fact that his family likely did own slaves. 

Step 4: Revise and refine your thesis statement before you start writing

Read through your thesis statement several times before you begin to compose your full essay. You need to make sure the statement is ironclad, since it is the foundation of the entire paper. Edit it or have a peer review it for you to make sure everything makes sense and that you feel like you can truly write a paper on the topic. Once you’ve done that, you can then begin writing your paper.

When writing a thesis statement, there are some common pitfalls you should avoid so that your paper can be as solid as possible. Make sure you always edit the thesis statement before you do anything else. You also want to ensure that the thesis statement is clear and concise. Don’t make your reader hunt for your point. Finally, put your thesis statement at the end of the first paragraph and have your introduction flow toward that statement. Your reader will expect to find your statement in its traditional spot.

If you’re having trouble getting started, or need some guidance on your essay, there are tools available that can help you. CollegeVine offers a free peer essay review tool where one of your peers can read through your essay and provide you with valuable feedback. Getting essay feedback from a peer can help you wow your instructor or college admissions officer with an impactful essay that effectively illustrates your point.

Related CollegeVine Blog Posts

How to Write a Thesis Statement (Full Guide + 60 Examples)

Crafting the perfect thesis statement is an art form that sets the foundation for your entire paper.

Here is how to write a thesis statement:

Write a thesis statement by clearly stating your topic, expressing your position, and providing key points. For example: “Social media impacts teens by influencing self-esteem, enabling cyberbullying, and shaping social interactions.” Be specific, concise, and arguable.

This ultimate guide will break down everything you need to know about how to write a thesis statement, plus 60 examples.

What Is a Thesis Statement?

Table of Contents

A thesis statement is a concise summary of the main point or claim of an essay, research paper, or other piece of academic writing.

It presents the topic of your paper and your position on the topic, ideally in a single sentence.

Think of it as the roadmap to your paper—it guides your readers through your arguments and provides a clear direction.

Key Elements of a Thesis Statement

• Clarity: Your thesis should be clear and specific.
• Position: It should convey your stance on the topic.
• Argument: The statement should make a claim that others might dispute.

Types of Thesis Statements

There are various types of thesis statements depending on the kind of paper you’re writing.

Here are the main ones:

• Standard Method – This is the classic thesis statement used in many academic essays. It provides a straightforward approach, clearly stating the main argument or claim and outlining the supporting points.
• Research Paper – Designed for research papers, this type involves extensive research and evidence. It presents a hypothesis or a central argument based on your research findings.
• Informative Essay – Used for essays that aim to inform or explain a topic. It provides a clear summary of what the reader will learn.
• Persuasive Essay – For essays meant to persuade or convince the reader of a particular point of view. It clearly states your position and outlines your main arguments.
• Compare and Contrast Essay – Used when comparing two or more subjects. It highlights the similarities and differences between the subjects and presents a clear argument based on these comparisons.
• Analytical Essay – Breaks down an issue or idea into its component parts, evaluates the issue or idea, and presents this breakdown and evaluation to the audience.
• Argumentative Essay – Makes a claim about a topic and justifies this claim with specific evidence. It’s similar to the persuasive essay but usually requires more evidence and a more formal tone.
• Expository Essay – Explains or describes a topic in a straightforward, logical manner. It provides a balanced analysis of a subject based on facts without opinions.
• Narrative Essay – Tells a story or relates an event. The thesis statement for a narrative essay usually highlights the main point or lesson of the story.
• Cause and Effect Essay – Explores the causes of a particular event or situation and its effects. It provides a clear argument about the cause and effect relationship.

How to Write a Thesis Statement (Standard Method)

Writing a standard thesis statement involves a few straightforward steps.

Here’s a detailed guide:

• Identify Your Topic: What is your essay about?
• Take a Stance: What is your position on the topic?
• Outline Your Main Points: What are the key arguments that support your stance?
• Combine All Elements: Formulate a single, coherent sentence that encompasses all the above points.
• “Social media has a significant impact on teenagers because it influences their self-esteem, provides a platform for cyberbullying, and shapes their social interactions.”
• “Climate change is a pressing issue that requires immediate action because it threatens global ecosystems, endangers human health, and disrupts economies.”
• “The rise of remote work is transforming the modern workplace by increasing flexibility, reducing overhead costs, and enhancing work-life balance.”
• “School uniforms should be mandatory in public schools as they promote equality, reduce bullying, and simplify the morning routine.”
• “Digital literacy is essential in today’s world because it improves communication, enhances job prospects, and enables informed decision-making.”

How to Write a Thesis Statement for a Research Paper

Research papers require a more detailed and evidence-based thesis.

Here’s how to craft one:

• Start with a Research Question: What are you trying to find out?
• Conduct Preliminary Research: Gather evidence and sources.
• Formulate a Hypothesis: Based on your research, what do you think will happen?
• Refine Your Thesis: Make it specific and arguable.
• “The implementation of renewable energy sources can significantly reduce carbon emissions in urban areas, as evidenced by case studies in cities like Copenhagen and Vancouver.”
• “Genetically modified crops have the potential to improve food security, but their impact on biodiversity and human health requires further investigation.”
• “The use of artificial intelligence in healthcare can improve diagnostic accuracy and patient outcomes, but ethical concerns about data privacy and algorithmic bias must be addressed.”
• “Urban green spaces contribute to mental well-being and community cohesion, as demonstrated by longitudinal studies in various metropolitan areas.”
• “Microplastic pollution in oceans poses a severe threat to marine life and human health, highlighting the need for stricter waste management policies.”

How to Write a Thesis Statement for an Essay

You’ll write thesis statements a little differently for different kinds of essays.

Informative Essay

• Choose Your Topic: What are you informing your readers about?
• Outline Key Points: What are the main pieces of information?
• Draft Your Statement: Clearly state the purpose and main points.
• “The process of photosynthesis is essential for plant life as it converts light energy into chemical energy, produces oxygen, and is the basis for the food chain.”
• “The human digestive system is a complex series of organs and glands that process food, absorb nutrients, and eliminate waste.”
• “The Industrial Revolution was a period of major technological advancement and social change that reshaped the economies and societies of Europe and North America.”
• “The history of the internet from its early development in the 1960s to its current role in global communication and commerce is a fascinating journey of innovation and transformation.”
• “The impact of climate change on Arctic ecosystems is profound, affecting wildlife, indigenous communities, and global weather patterns.”

Persuasive Essay

• Identify Your Position: What are you trying to convince your reader of?
• Gather Supporting Evidence: What evidence backs up your position?
• Combine Elements: Make a clear, arguable statement.
• “Implementing a four-day workweek can improve productivity and employee well-being, as supported by studies from Iceland and Japan.”
• “The death penalty should be abolished as it is inhumane, does not deter crime, and risks executing innocent people.”
• “Public transportation should be made free to reduce traffic congestion, decrease pollution, and promote social equity.”
• “Recycling should be mandatory to conserve natural resources, reduce landfill waste, and protect the environment.”
• “Vaccination should be mandatory to protect public health and prevent the spread of contagious diseases.”

Compare and Contrast Essay

• Choose Subjects to Compare: What are the two (or more) subjects?
• Determine the Basis of Comparison: What specific aspects are you comparing?
• Draft the Thesis: Clearly state the subjects and the comparison.
• “While both solar and wind energy are renewable sources, solar energy is more versatile and can be used in a wider variety of environments.”
• “Although both capitalism and socialism aim to improve economic welfare, capitalism emphasizes individual freedom while socialism focuses on collective equality.”
• “Traditional classroom education and online learning each offer unique benefits, but online learning provides greater flexibility and access to resources.”
• “The novels ‘1984’ by George Orwell and ‘Brave New World’ by Aldous Huxley both depict dystopian societies, but ‘1984’ focuses on totalitarianism while ‘Brave New World’ explores the dangers of technological control.”
• “While iOS and Android operating systems offer similar functionality, iOS provides a more streamlined user experience, whereas Android offers greater customization options.”

How to Write a Thesis Statement for an Analytical Essay

An analytical essay breaks down an issue or idea into its component parts, evaluates the issue or idea, and presents this breakdown and evaluation to the audience.

• Choose Your Topic: What will you analyze?
• Identify Key Components: What are the main parts of your analysis?
• Formulate Your Thesis: Combine the components into a coherent statement.
• “Shakespeare’s ‘Hamlet’ explores themes of madness and revenge through the complex characterization of Hamlet and his interactions with other characters.”
• “The economic policies of the New Deal addressed the Great Depression by implementing financial reforms, creating job opportunities, and providing social welfare programs.”
• “The symbolism in ‘The Great Gatsby’ by F. Scott Fitzgerald reflects the moral decay and social stratification of the Jazz Age.”
• “The narrative structure of ‘Inception’ uses nonlinear storytelling to explore the complexities of dreams and reality.”
• “The use of color in Wes Anderson’s films enhances the whimsical and nostalgic tone of his storytelling.”

How to Write a Thesis Statement for an Argumentative Essay

An argumentative essay makes a claim about a topic and justifies this claim with specific evidence.

It’s similar to the persuasive essay but usually requires more evidence and a more formal tone.

• Choose Your Topic: What are you arguing about?
• Gather Evidence: What evidence supports your claim?
• Formulate Your Thesis: Make a clear, evidence-based statement.
• “Climate change is primarily driven by human activities, such as deforestation and the burning of fossil fuels, which increase greenhouse gas emissions.”
• “The benefits of universal healthcare outweigh the costs, as it ensures equal access to medical services, reduces overall healthcare expenses, and improves public health.”
• “The death penalty should be abolished because it violates human rights, is not a deterrent to crime, and risks the execution of innocent people.”
• “Animal testing for cosmetics should be banned as it is unethical, unnecessary, and alternatives are available.”
• “Net neutrality should be maintained to ensure a free and open internet, preventing service providers from prioritizing or blocking content.”

How to Write a Thesis Statement for an Expository Essay

An expository essay explains or describes a topic in a straightforward, logical manner.

It provides a balanced analysis of a subject based on facts without opinions.

• Choose Your Topic: What are you explaining or describing?
• Outline Key Points: What are the main facts or components?
• Formulate Your Thesis: Combine the elements into a clear statement.
• “The water cycle consists of evaporation, condensation, and precipitation, which are essential for maintaining the earth’s water balance.”
• “The human respiratory system is responsible for taking in oxygen and expelling carbon dioxide through a series of organs, including the lungs, trachea, and diaphragm.”
• “Photosynthesis in plants involves the absorption of light energy by chlorophyll, which converts carbon dioxide and water into glucose and oxygen.”
• “The structure of DNA is a double helix composed of nucleotides, which are the building blocks of genetic information.”
• “The process of mitosis ensures that cells divide correctly, allowing for growth, repair, and reproduction in living organisms.”

How to Write a Thesis Statement for a Narrative Essay

A narrative essay tells a story or relates an event.

The thesis statement for a narrative essay usually highlights the main point or lesson of the story.

• Identify the Main Point: What is the main lesson or theme of your story?
• Outline Key Events: What are the key events that support this point?
• Formulate Your Thesis: Combine the main point and events into a coherent statement.
• “Overcoming my fear of public speaking in high school taught me the value of confidence and perseverance.”
• “My summer volunteering at a wildlife rescue center showed me the importance of compassion and teamwork.”
• “A family road trip across the country provided me with unforgettable memories and a deeper appreciation for our diverse landscapes.”
• “Moving to a new city for college challenged me to adapt to new environments and build independence.”
• “A childhood friendship that ended in betrayal taught me the importance of trust and resilience.”

How to Write a Thesis Statement for a Cause and Effect Essay

A cause and effect essay explores the causes of a particular event or situation and its effects.

It provides a clear argument about the cause and effect relationship.

• Identify the Event or Situation: What are you analyzing?
• Determine the Causes: What are the reasons behind this event or situation?
• Identify the Effects: What are the consequences?
• Formulate Your Thesis: Combine the causes and effects into a coherent statement.
• “The rise in global temperatures is primarily caused by human activities, such as burning fossil fuels, and leads to severe weather patterns and rising sea levels.”
• “The introduction of invasive species in an ecosystem disrupts the balance and leads to the decline of native species.”
• “Economic recession is caused by a combination of factors, including high unemployment rates and declining consumer confidence, and results in reduced business investments and government spending.”
• “Prolonged exposure to screen time can cause digital eye strain and sleep disturbances, affecting overall health and productivity.”
• “Deforestation contributes to soil erosion and loss of biodiversity, leading to the degradation of ecosystems and reduced agricultural productivity.”

How to Write a Good Thesis Statement

Writing a good thesis statement is all about clarity and specificity.

Here’s a formula to help you:

• State the Topic: What are you writing about?
• Express Your Opinion: What do you think about the topic?
• Provide a Reason: Why do you think this way?
• “Remote work is beneficial because it offers flexibility, reduces commuting time, and increases job satisfaction.”
• “Regular exercise is essential for maintaining physical and mental health as it boosts energy levels, improves mood, and reduces the risk of chronic diseases.”
• “Reading fiction enhances empathy by allowing readers to experience different perspectives and emotions.”
• “A plant-based diet is advantageous for both personal health and environmental sustainability.”
• “Learning a second language enhances cognitive abilities and opens up cultural and professional opportunities.”

Check out this video about how to write a strong thesis statement:

How to Write a Thesis Statement (Formula + Template)

Use this simple formula to craft your thesis statement:

[Main Topic] + [Your Opinion/Position] + [Reason/Key Points]

Template: “__________ (main topic) has __________ (your opinion) because __________ (reason/key points).”

• “Electric cars are the future of transportation because they reduce greenhouse gas emissions, lower fuel costs, and require less maintenance.”
• “Social media platforms should implement stricter privacy controls because user data is vulnerable to breaches, exploitation, and misuse.”
• “Higher education should be more affordable to ensure equal access and promote social mobility.”
• “Television news often fails to provide balanced coverage, leading to public misinformation.”
• “Volunteer work should be encouraged in schools to foster community engagement and personal development.”

Thesis Statement Tips

Writing a strong thesis statement is crucial for a successful essay. Here are some tips to help you craft a killer thesis statement:

• Be Specific: Avoid vague language. Make sure your thesis statement clearly defines your argument or main point.
• Be Concise: Keep it to one or two sentences. Your thesis statement should be brief and to the point.
• Make It Arguable: Ensure that your thesis statement presents a claim or argument that can be disputed.
• Place It Appropriately: Typically, your thesis statement should be placed at the end of your introduction paragraph.
• Revise and Refine: Don’t be afraid to revise your thesis statement as you write and refine your essay. It should evolve as your ideas develop.

Common Thesis Statement Errors

Avoid these common errors when crafting your thesis statement:

• Too Broad: A thesis statement that is too broad makes it difficult to focus your essay. Narrow it down to a specific point.
• Too Vague: Avoid vague language that lacks specificity. Be clear about what you’re arguing.
• Lacks an Argument: Ensure that your thesis statement makes a clear argument or claim. Avoid statements that are purely factual or descriptive.
• Too Complex: A thesis statement should be straightforward and easy to understand. Avoid overly complex sentences.
• Off-Topic: Make sure your thesis statement is directly related to the topic of your essay. Stay on track.

How Do You Start a Thesis Statement?

Starting a thesis statement involves using clear and concise language that sets the stage for your argument.

Here are some exact words and phrases to begin with:

• “The purpose of this paper is to…”
• “This essay will argue that…”
• “In this essay, I will demonstrate that…”
• “The central idea of this paper is…”
• “This research aims to prove that…”
• “This study focuses on…”
• “This analysis will show that…”
• “The main argument presented in this paper is…”
• “The goal of this essay is to…”
• “Through this research, it will be shown that…”

How Long Should a Thesis Statement Be?

A thesis statement should be clear and concise, typically one to two sentences long.

Aim for 20 to 30 words, ensuring it includes the main topic, your position, and the key points that will be covered in your paper.

This provides a focused and precise summary of your argument, making it easier for readers to understand the main direction of your essay or research paper.

While brevity is essential, it’s also crucial to provide enough detail to convey the scope of your argument.

Avoid overly complex sentences that can confuse readers. Instead, strive for a balance between clarity and comprehensiveness, ensuring your thesis statement is straightforward and informative.

Summary Table of Thesis Statement Writing

Final thoughts: how to write a thesis statement.

Writing a strong thesis statement is the cornerstone of a successful paper.

It guides your writing and helps your readers understand your argument. Remember to be clear, specific, and concise. With practice, you’ll master the art of crafting killer thesis statements.

Read This Next:

• How to Write a Hypothesis [31 Tips + Examples]
• How to Write a Topic Sentence (30+ Tips & Examples)
• How to Write a Paragraph [Ultimate Guide + Examples] What Is A Universal Statement In Writing? (Explained) 21 Best Ways To Write Essays When You Are Stuck [Examples]

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The Thesis Sentence

The thesis sentence is arguably the most important sentence in an academic paper. Without a good, clear thesis that presents an intriguing arguable point, a paper risks becoming unfocused, aimless, not worth the reader's time.

The Challenge of the Thesis Sentence

Because the thesis sentence is the most important sentence of a paper, it is also the most difficult to write. Readers expect a great deal of a thesis sentence: they want it to powerfully and clearly indicate what the writer is going to say, why she is going to say it, and even how it is that she is going to go about getting it said. In other words, the job of the thesis sentence is to organize, predict, control, and define the paper's argument.

In many cases, a thesis sentence will not only present the paper's argument, it will also point to and direct the course that the argument is going to take. In other words, it may also include an "essay map" - i.e., phrases or clauses that map out for the reader (and the writer) the argument that is to come. In some cases, then, the thesis sentence not only promises an argument, it promises the structure of that argument as well.

The promises that a thesis sentence makes to a reader are important ones and must be kept. It's helpful sometimes to explain the thesis as a kind of contract between reader and writer: if this contract is broken, the reader will feel frustrated and betrayed. Accordingly, the writer must be very careful in the development of the thesis.

Working on the Thesis Sentence

Chances are if you've had trouble following or deciphering the argument of a paper, there's a problem with the thesis. If a tutor's first response to a paper is that he doesn't know what the paper is about, then the thesis sentence is either absent from the paper, or it's hiding. The first thing you might wish to do is to ask the writer what his thesis is. He may point to a particular sentence that he thinks is his thesis, giving you a very good place to start.

Let's say that you've read a paper in which you've encountered this thesis:

Although heterosexuality has long been regarded as the only natural expression of sexuality, this view has been recently and strongly challenged by the gay rights movement.

What's wrong with this sentence? Many things, the most troublesome of which is that it argues nothing. Who is going to deny that the heteronormative view has been challenged by the gay rights movement? At this point, you need to ask the writer some questions. In what specific ways has the gay rights movement challenged heterosexuality? Do these ways seem reasonable to the writer? Why or why not? What argument does he intend to make about this topic? Why does he want to make it? To whom does he want to make it?

After giving the writer some time to think about and talk about these questions, you'll probably want to bring up another problem that is certain to arise out of a thesis like this one: the matter of structure. Any paper that follows a thesis like this one is likely to ramble. How can the reader figure out what all the supporting paragraphs are doing when the argument itself is so ill-defined? You'll want to show the writer that a strong thesis suggests - even helps to create - strong topic sentences. (More on this when we consider matters of structure, below).

But before we move on to other matters, let's consider the problem of this thesis from another angle: its style. We can see without difficulty that the sentence presents us with at least two stylistic problems: 1) this thesis, which should be the most powerful sentence of the paper, employs the passive voice, and 2) the introductory clause functions as a dangling modifier (who regards heterosexuality as the only natural way to express sexuality?).

Both stylistic problems point to something at work in the sentence: the writer obliterates the actors - heterosexuals and homosexuals alike - by using the dangling modifier and the passive voice. Why does he do that? Is he avoiding naming the actors in these sentences because he's not comfortable with the positions they take? Is he unable to declare himself because he feels paralyzed by the sense that he must write a paper that is politically correct? Or does he obliterate the actors with the passive voice because he himself wishes to remain passive on this topic?

These are questions to pose to the writer, though they must be posed gently. In fact, you might gently pose these questions via a discussion of style. For instance, you might also suggest that the writer rewrite the sentence in the active voice:

Although our society has long regarded heterosexuality as the only natural expression of sexuality, members of the gay rights movement have challenged this view strongly.

This active construction helps us to see clearly what's missing:

Although our society has long regarded heterosexuality as the only natural expression of sexuality, members of the gay rights movement have challenged this view strongly, arguing XYZ.

This more active construction also makes it clear that merely enumerating the points the author wants to make is not the same thing as creating an argument. The writer should now be able to see that he needs to go one step further - he needs to reveal his own position on the gay rights movement. The rest of the paper will develop this position.

In short, there are many ways to begin work on a writer's thesis sentences. Almost all of them will lead you to other matters important to the paper's success: its structure, its language, its style. Try to make any conversation you have about thesis sentences point to other problems with the writing. Not only is this strategy efficient, but it also encourages a writer to see how important a thesis is to the overall success of his essay.

Talking Your Way to a Workable Thesis

For the sake of making (we hope) a somewhat humorous illustration of the matter at hand, we offer the following scenario, which shows how tutor and tutee can talk their way to a workable thesis - and, indeed, to a good essay. So sit back, and enjoy this "break" in your training.

Imagine (though it is indeed quite a stretch) that a freshman composition teacher has the audacity to assign a paper on cats (the animals, not the play). The students may write any kind of paper they like - narration, description, compare/contrast, etc. - as long as their essays contain a thesis (that is, that they argue some point) concerning cats. A writer comes to you for help in developing her thesis. You read the assignment, and then you tell the writer that she first must choose the kind of paper she would like to do. She decides to do a narrative because she thinks she has more freedom in the narrative form. Then you ask her what she has to say about cats. "I don't like them," is her reply.

"OK," you say, "that's a start. Why don't you like them?" The writer has lots of reasons: they smell, they're aloof, they shed, they keep you up nights when they're in heat, they're very middle class, they steal food off of the table, they don't get along with dogs (the writer loves dogs), and on, and on. After brainstorming for a while, you tell the writer to choose a few points on which she'd like to focus - preferably those points that she feels strongly about or those which seem unusual. She picks three: cats smell, they steal food, and they are middle class. She offers her thesis: "I don't like cats because they are smelly, thieving, and middle class."

"O.K.," you say, "It's not a very sophisticated thesis but we can use it for now. After all, it defines your stance, it controls your subject, it organizes your argument, and it predicts your strategy - all the things that a thesis ought to do. Now let's consider how to develop the thesis, point by point."

You begin to ask questions about cats and their smell. "What do they smell like?" you say. The writer thinks awhile, and then says, "They smell like dirty gym shorts, like old hamburgers, like my eighth-grade math teacher's breath." The writer laughs, particularly fond of the final simile. Then she adds, "My boyfriend has a cat. A Tom. When he moved into his first apartment, that cat sprayed all over the place, you know, marking his territory. The place stunk so bad that I couldn't even go there for a week. Can you imagine? Your boyfriend gets his first apartment, and you can't even go in the place for a week?"

The writer has sparked your imagination; you think that she can spark her teacher's imagination as well. "Why don't you do your narrative about your boyfriend's cat? You could tell the story - or you could make up a story - about going over there for dinner, hoping for a romantic evening, and being put off by the cat." The writer likes this idea and goes off to write her draft. She returns with the following story about her boyfriend and his cat.

She was hoping for a romantic dinner; he was making her favorite meal. She could smell the T-bone and the apple pie before she even got to his door. But when she opened the door, her appetite was obliterated: the smell of cat spray smelled worse than her eighth-grade math teacher's breath. Of course, because she remained hopeful for a romantic evening, she put on her best face, tried not to grimace, and gave her boyfriend the flowers she'd picked up on the way. They chat; everything is going fine; he goes to the kitchen to check on dinner; she hears his shriek. The cat has stolen all of the food! Upon searching, they find the cat under the sofa, not only with their dinner, but with the writer's wallet, her favorite picture of her mom torn in half, her new leather jacket now full of cat hairs. This cat not only stinks, he's a thief as well. Still, the evening need not be a total waste. They order pizza, have some wine. She and her man talk; their moods improve, and she decides that it might be a nice time to kiss. She pulls the old yawn trick to get her arm around him, and just as she's ready to kiss him the cat jumps into his lap. "Oh, Pookie, Pookie, Pookie," her boyfriend says, giving himself over to the purring cat. "Damn lap cat," the writer says to herself, and leaves it at that. She has written a paper illustrating that cats are smelly, thieving, and middle class. She has fulfilled her thesis.

Now, you like this paper. It's got a great voice, and it's got humor. You feel, however, that the writer should refine the thesis. It has served the writer well in helping her to organize, control, predict, and define her essay; however, she needs now to consider how to choose words and a tone which will hook the reader and reel him in. You explain to the writer that her thesis can be humorous, that she can feel free to be extreme, because a funny, exaggerated thesis would suit this funny, exaggerated paper.

After some doodling and some dialogue, the writer comes up with the following thesis: "All cats should be exterminated because they are the stinking, kleptomaniacal darlings of the bourgeoisie." You laugh; you like it. Moreover, the thesis has given the writer an ending for her essay: she exterminates the cat in her boyfriend's microwave, convinces him to get a goldfish instead, and the two of them live happily ever after. The writer is happy. The tutor is happy. The paper works.

While you will likely not encounter a "cat" assignment at Dartmouth, this sort of experience with writing a thesis is a common one. Even when papers are more sophisticated than this one - even when the subject is Hitler's rise to power, or Freud's treatment of taboo - writers will often write a working thesis, one that guides them through the writing process. Then they will return to the thesis, sometimes several times before their paper is finished, revising it to better fit their paper's increasingly refined argument and tone.

Polishing the Thesis Sentence

Look at the sentence's structure. Is the main idea of the paper placed appropriately in the main clause? If there are parallel points made in the paper, does the thesis sentence signal this to the reader via some parallel structure? If the paper makes an interesting but necessary aside, is that aside predicted - perhaps in a parenthetical element? Remember: the structure of the thesis sentence also signals much to the reader about the structure of the argument. Be sure that the thesis reflects, reliably, what the paper itself is going to say.

As to the style of the sentence: hold the thesis sentence to the highest stylistic standards. Help a writer to make sure that it is as clear and concise as it can be, and that its language and phrasing reflect confidence, eloquence, and grace.