What is an Expository Essay? Ultimate Guide An expository essay is a type of academic writing where you investigate the topic by evaluating the evidence and expounding the idea to describe, explain, and provide the information to a reader. source: Unsplash So, it happens again: a teacher assigns an expository essay to you. Nothing special, right? After all, who doesn’t know anything about expository writing? *sarcasm here* Types of essays are so many, and the differences between them are so tiny, that it’s less than simple for a student to get lost in those writing jungles. That’s why Bid4Papers craft the detailed guides for you to find a way out: persuasive essays , narrative essays , SAT essays – they aren’t that terrible if you follow the right path of writing them. Today, the time is for how to write an expository essay. Take a cup of coffee or tea, sit back, and learn about what is an expository essay and its aspects. What is an Expository Essay?