Essay feedback, decoded

“No clear thesis”: what your marker means

In short

Your introduction says what the essay will discuss, but not what it will argue. A thesis is a one- or two-sentence answer to the question, stated early, that the rest of the essay sets out to support.

Updated October 2026 · 2 minute read

What it looks like

An example from English Literature.

As marked

Jane Eyre was published in 1847 under the name Currer Bell. This essay will discuss the presentation of Bertha Mason in the novel.

ContextAnnounces a topicNo position taken
Fixed

Jane Eyre was published in 1847 under the name Currer Bell. This essay argues that Bertha Mason is less Jane’s opposite than her double: she acts out the rage that Jane learns to control. It traces that rage from the red-room at Gateshead to Thornfield’s third storey, and asks why the novel must destroy Bertha before Jane can marry.

Brief contextA position to defendThe route through

Why markers write it

Markers read the rest of your essay through your introduction. Without a thesis, each paragraph has to be judged on its own; with one, each becomes a step in a case. Many UK marking criteria ask for a clear argument from the outset, and a thesis is the simplest way to show you have one.

How to fix it in your next essay

  1. 1Answer the question in a sentenceBefore drafting, write your answer as a claim someone could disagree with. That sentence is your thesis.
  2. 2Swap “discuss” for “argue”“This essay will discuss X” describes a topic. “This essay argues that X, because Y” gives a position.
  3. 3Check it after you draftArguments shift as you write. Once the essay is finished, rewrite the thesis to match what you actually argued.

Phrases that help

This essay argues that…Although…, this essay argues that…Rather than…, this essay argues……is best understood as…

How much it costs

Without a thesis, markers often find the argument hard to follow, which in most UK schemes affects the marks for argument and structure together and can hold an otherwise strong essay back.

Other ways markers say it

  • “What is your thesis?”
  • “Thesis statement needed”
  • “State your position”
  • “No clear argument in the introduction”
  • “Introduction lacks direction”

Often written alongside

Common questions

Does a thesis have to be one sentence?
No. One or two is typical. What matters is that it takes a position and gives the main reason for it.
Where should the thesis go?
Usually at the end of the introduction, after a line or two of context. Some modules prefer it first — check your guidance.

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