Writing a Strong Thesis Statement
What a thesis statement is, what makes one strong, and how to improve a weak one.
A thesis statement is a sentence or two that states the central claim of your essay. It is your answer to the question, which the rest of the essay supports.
What makes a thesis strong
- Arguable: a reasonable person could disagree.
- Specific: it names exactly what you are claiming.
- Focused: it can be developed in the length of the essay.
- Answers the question if there is one.
Weak and strong examples
| Weak | Why | Stronger |
|---|---|---|
| "Pollution is bad." | Too general; nobody disagrees. | "Local governments should limit private car use in city centres, because doing so reduces air pollution more cost-effectively than increasing public transport capacity alone." |
| "This essay is about Macbeth." | An announcement, not a claim. | "In Macbeth, ambition becomes destructive because it replaces moral restraint with fear." |
| "The Industrial Revolution had many effects." | Vague. | "The Industrial Revolution transformed Britain's economy mainly by shifting work from home to factories, which changed family and urban life." |
A formula to start with
Topic + claim + because/by reasoning. For example: "Remote work improves productivity for many employees because it reduces commuting time and allows focused work."
A formula is a starting point. Revise it until it sounds natural.
Revise as you write
Your first thesis is a working draft. If your evidence leads to a different conclusion, update the thesis so it matches the essay.
Quick recap
State an arguable, specific, focused claim that answers the question. Revise it to match your evidence.