In English, an essay is a piece of argumentative writing several paragraphs long written about one topic, usually based on your reading.
The aim of the essay should be deduced strictly from the wording of the title or question (See Academic Writing: Understanding the Question), and needs to be defined at the beginning.
The paragraph’s purpose and scope will determine its length, but paragraphs must contain at least two complete sentences.
The main idea of each paragraph is stated in a topic sentence that shows how the idea relates to the thesis.
The purpose of an essay is for you to say something for yourself using the ideas of the subject, for you to present ideas you have learned in your own way. then it is clear that a balanced essay is required.
The emphasis should be on working with other people's ideas, rather than reproducing their words, but your own voice should show clearly. That is to say you should present both sides of an argument, without necessarily committing yourself to any points of view, which should always be based on evidence, until the final paragraph.
Each paragraph discusses one major point and each paragraph should lead directly to the next. The question may be of the form: Compare questions usually present you with two or more terms, instruments, concepts or procedures that are closely connected, and sometimes confused.
The paragraphs are tied together with an introduction and a conclusion. When we are asked to describe or explain causes, factors, functions or results, the examiner wants us to group our facts. The purpose of the essay is to explain the similarities between them.
This should give full information about the materials that you have used in the assignment.
See Writing a list of references for more information on the reference list.