Longer essays may also contain an introductory page that defines words and phrases of the essay's topic. Most academic institutions require that all substantial facts, quotations, and other porting material in an essay be referenced in a bibliography or works cited page at the end of the text. This scholarly convention helps others (whether teachers or fellow scholars) to understand the basis of facts and quotations the author uses to support the essay's argument and helps readers evaluate to what extent the argument is supported by evidence, and to evaluate the quality of that evidence. The academic essay tests the student's ability to present their thoughts in an organized way and is designed to test their intellectual capabilities.

##The Preamble In this example, the ‘’ file is the root document and is the tex file that will draw the whole document together. The first thing we need to choose is a document class. The article class isn’t designed for writing long documents like thesis’ so we’ll choose the report class, but we could also choose the book class. We can also change the font size by adding square brackets into the \documentclass command and specifying the size. We’ll choose 12pt. Let’s also prepare the document for images by loading the graphicx package. We’ll also need to tell LaTeX where to look for the images using the \graphicspath command, as we’re storing them in a separate folder. The start of our preamble now looks like this: