There are all kinds of genres of the essay—and you’ll most likely be assigned several types of these throughout your college/university career.
The major types of essays are of the acronym EDNA: expository, description, narration, or argumentative/persuasive. In fact, many freshman/English 100/101 instructors assign all of these within one quarter or semester to expose their students to an array of essay styles and give them practice with each one.
Because the expository essay is chiefly informative, in that it explains an idea, process, or details instructions about something the writer knows well, it is often students’ favorite essay to write because it is easier than, say, a researched persuasive essay.
Overall, the expository essay can be fun and easy to write and structure. Good luck!