An expository essay is a type of academic writing that explains or describes a topic, idea or concept objectively, using facts and evidence rather than personal opinion, to inform the reader clearly and concisely.
Common types include definition essays, process or ‘how-to’ essays, compare-and-contrast essays, cause-and-effect essays and problem-solution essays. Each shares the same objective purpose: explaining rather than arguing or persuading the reader towards a viewpoint.
A typical structure opens with an introduction stating the topic and a clear thesis, follows with body paragraphs each covering one supporting point with evidence, and closes with a conclusion summarising what was explained.
Because expository essays avoid opinion, sources need to be factual and verifiable rather than persuasive, keeping the tone neutral throughout. Our essay writing guide hub covers this and other essay types in depth.
This makes it easy to confuse with an argumentative essay, which does take a side. If your assignment brief is unclear on which type is required, our essay writers can clarify and produce a matching model answer.


