Essays should demonstrate a meaningful and theoretical level of the subject the author is talking about. So, try to choose a topic, you are aware of. Choosing essay topics is not the easiest task, so it properly. There is nothing worse then to read an essay when you understand that the author has nothing to say, has no viewpoint or just has nothing to say. Essays should reflect the personal opinions of the author's view on problems (ie, value judgments - opinions based on the author's beliefs or opinions). You can use examples from your personal life or situations you have heard of. The text of the essay should be balanced. If the topic you’ve chosen is argumentative, try to analyze the opposite point of view, look at its arguments and prove they are wrong.
Content of the essay should be thoughtful, logical and structured correctly (it should include an introduction, main part, conclusion). In the introduction acquaint the reader with the topic of the essay, start with defining the topic of essay. In the main part develop your main ideas, show your viewpoint and demonstrate your arguments. The main part is based on analytical work, including analysis of the facts. In the conclusion sum everything up. Conclusion can be represented as the sum of judgments that leave space for further discussion. You must specify the sources of information, facts and data you use, so that the reader will trust what you say. Especially when using historical facts or statistical data, check the information.
The essay must contain creativity and be innovative. Judgments given in your essay must be conclusive. Different essay topics give you different opportunities to show your thoughts, try to think deeper or to open a new side of the topic. You can always be the first.
Criteria for evaluation essays are almost the same in different subjects. They are: clarity of the problem within the stated topic; erudition: knowledge and logical presentation of factual materials; understanding the differences between the educational, journalistic, scientific, popular and scientific types of texts; ability to isolate cause-effect relationships; ability to analyze historical knowledge; ability to draw conclusions and give constructive arguments supporting them; manifestation of the creative and independent thinking; skills in literary language.
There are many rules you have to follow when writing an essay. But you always can find professionals, who can help you even with the most difficult essay topics.