However, even with all this, you can still ace your essays and come up with excellent marks if you follow what needs to be done to get consistently better at writing essays.
The expository essays are mainly for writer to let the writer in on all the options, leaving the final decision for the reader to make his own inferences based on the information that has been provided him.
Critical and analytical essays are a good example of expository essays, requiring a lot of research to finally result in the reader understanding the topic as a whole.
As a student, you are probably all too familiar with having to write an essay as your school or coursework assignment.
Most of the time, especially for your first few essays, you are probably given guidelines to follow, and all you really need to do is research the given topic and come up with an essay based on the topic and the guidelines.