Most themes come with an About page already built into your bar. One of the criteria on the rubric for this class is to either create or finish that About page. Here are a couple of short articles to help you write a good About page: About Page 101: Making Them Care and About Page 102: The Meat Grinder. Read them and go to work.
Once you’ve finished your About page, consider using the best one or two sentences and copying them into a text widget on your sidebar. That will let new readers know right away who you are.
(Photo credit: zappythemes.com)