Your conclusion is the final paragraph or two of your paper. According to Strategies for Successful Writing: A Rhetoric and Reader:
A conclusion rounds out a paper and signals that the discussion has been completed. ... To be effective, a conclusion must mesh logically and stylistically with what comes earlier. A long, complex paper often ends with a summary of the main points, but several other options may be used for shorter papers with easy-to-understand ideas. Most short essays have single-paragraph conclusions; longer papers may require two or three paragraphs.
Don'ts
"Remember that everything you have to say - all your conclusions about the topic and your facts that prove them - belong in the body of the paper. The ending merely wraps up the theme and ties it in a bow."
Do's/ideas for the content of your conclusion