While conclusions are often considered an afterthought, a good conclusion is necessary for a good paper. This is the last part of the paper that will be read, and a good conclusion leaves the reader thinking about the essay and the important points that are presented. On the other hand, a poor conclusion detracts from the essay, no matter how strong the rest of the paper is.
All good conclusions bring an essay to a satisfactory end by wrapping up the important information that is presented throughout the essay. A conclusion should always restate the thesis and/or the main points from the paper. This is your last chance to remind the reader of the importance of what you have been writing about and why it is important and is the last chance to leave the reader with something interesting to consider after the reader is finished reading it.
A conclusion does not have to be long, but it does need to accomplish the goals discussed above. Use the following as a checklist for the conclusion:
A good conclusion is neither too long nor too short. It is long enough to bring the paper to a satisfactory end, but is short enough to keep the reader interested and not make it seem as if the paper is dragging on. Generally, the length of the conclusion should match the length of the essay. A shorter conclusion is appropriate for a shorter essay, and a longer essay often needs to have a longer conclusion.