What Is a Call to Action in an Essay?

The definition

A call to action is a sentence or two at the end of a persuasive piece asking the reader to do something specific as a result of having been convinced. It has two parts: an action, and a reason this reader in particular should take it. Drop the second and you have a slogan.

It is the last move of persuasion, not a sign-off. The argument has established that something is the case; the call to action says what now follows for the person reading.

The term arrives in essay writing from two directions, and the second is where the trouble starts. In rhetoric it is old and respectable — the closing appeal of a speech. In marketing it means the button that says “Sign up today”. An essay is not a landing page, and the marketing register is what produces the breathless closing paragraphs that markers dislike.

Where it belongs, and where it is wrong

Most essays should not have one. That is the single most useful thing on this page, because the commonest mistake is not writing a bad call to action — it is bolting a call to action onto an essay whose form forbids it.

It belongs in: persuasive essays, argumentative essays that argue for a policy, op-eds and editorials, speeches, proposals, advocacy and campaign writing, and reflective writing about professional practice, where the action is something you will do.

It does not belong in: informative and expository essays, analytical essays and literary analysis, most narrative and personal essays, research papers, lab reports, and most history essays.

For informative writing the prohibition is absolute, and the conclusion is exactly where people break it. The form requires you not to take a position; telling the reader what to do is taking a position and issuing an instruction on top of it. An informative essay that ends “we must therefore invest in flood defences” has changed form in its last sentence, and a marker reads that as not having understood the assignment.

There is a precise version of the rule, and it is worth holding onto. A call to action is the natural ending of a claim of policy, and of no other kind of claim. If your thesis argued that something *should be done*, the ending that says what to do is doing the thing the essay set up. If your thesis argued that something *is the case*, or what something *means*, or what *caused* what, an instruction at the end is a claim the essay never made and never supported.

What a good one contains

A specific action. “Write to your representative about the licensing clause” is an action. “We must all do our part” is a mood. If the reader cannot picture themselves doing the thing, it is not a call to action.

The right audience. Ask the reader actually in front of you. In an academic essay that is a marker, and a marker cannot act on behalf of society — which is why the best academic calls to action are often addressed to the field, the policy process, or the reader as a practitioner rather than to humanity.

Proportion. The action has to be the size of what you proved. If you established a narrow claim about one licensing clause, ask for something about that clause. Asking for a transformation of the energy system on the back of a 1,500-word essay undoes the credibility the essay just built.

Feasibility. An action nobody can actually take is a slogan with a verb in it. Somebody reading this, in a position like theirs, has to be able to do it.

Earned, not enthusiastic. It should follow from the evidence. The test is whether you could put “therefore” in front of it and have the sentence still be true.

Weak and strong, paired

Each pair below assumes a stated essay, because a call to action can only be judged against the argument it is supposed to follow from.

*For an essay arguing that local procurement rules, rather than national targets, determine whether public buildings are retrofitted:*

Weak: We must all do our part to protect the environment before it is too late.

Strong: If the argument holds, the leverage is not in national targets but in procurement, which means the people who can change this outcome are the ones who write and approve purchasing criteria — and that is a far smaller room than the debate usually assumes.

The weak version could end any essay ever written on any subject. The strong one could only end this one, which is the actual test.

*For a reflective essay on a clinical placement, about a failure in handover:*

Weak: In future, I will try to communicate better and be more organised.

Strong: In the next placement I will write the handover note before the shift ends rather than after it, because the failure here was not a lack of care but a lack of time at the only point when the information still existed.

Reflective calls to action are the easiest to write well, because the actor is you and the action is small and real. They are also the most frequently wasted on generalities.

*For an argumentative essay establishing that a measurement method understates a problem:*

Weak: Clearly, something must be done about this important issue.

Strong: The immediate implication is narrow and worth stating plainly: any decision taken on the current figures is being taken on an undercount, and the first thing to change is the measure rather than the policy built on it.

Note that the strong version is still a call to action, but it asks for one specific thing and admits its own narrowness. That is what makes it persuasive rather than decorative.

Where it goes, and how long

In the last one or two sentences of the conclusion, and not before. You have to say what follows from the argument before you say what to do about it; a call to action that arrives first reads as though the conclusion skipped a step, because it did.

One or two sentences. A paragraph-long call to action is a manifesto, and it will be read as one.

It must not be the only thing the conclusion does. A closing paragraph still owes the reader the implication of the argument and, ideally, its cost — the action comes after those and because of them. A call to action bolted onto a summary is still a summary.

If your essay should not have one

Most should not, so this is the more likely case. The endings that do the same work without changing form: state the implication of what you proved; name what your position costs; say what remains unresolved and why; or return to a specific detail from earlier that now reads differently.

One diagnosis worth making before you reach for a call to action. If you are adding one because the conclusion feels flat, the flatness is almost certainly because the conclusion is a summary — and the fix is to replace the summary, not to decorate it. The companion piece on how to end an essay covers what to replace it with for each form.