Mechanics

In the essay you need to make sure that you're margins are correct, and that there are no sentence fragments. Also make sure that you're punctuation is correct as well as you re spelling. Also make sure you re capitalization is correctly used. And also no contractions, vague references, and unnecessary shifts are allowed. And finally make sure that there is a pronoun and subject agreement and that there are correct prepositions.  And that is what you need to make sure when doing an essay.