A good essay starts with a clear topic focus. This means the writer knows what he or she is going to write about prior to putting anything in paragraph form. Brainstorming ideas on a piece of scratch paper may help jump start the thinking process and generate a list of choices. If the person is writing the essay for a class, then carefully reading the instructions given is absolutely essential. The most common mistake is failing to read and follow the actual instructions. Once a topic is decided upon, the essay should provide details that point back to the chosen topic. Introducing new topics that are unrelated to the original topic is generally not advised, unless the instructions specifically require this. A good essay should also have a strong opening and closing section that wraps up the big ideas of the essay, again referencing the main topic of the essay.
To write an essay paper you have to first decide what you want to write about. The next thing to do is to brainstorm and write down everything you know about the subject. You can then put the thoughts in order to create your essay paper.