You can have a nice looking page for the author’s of your blog, that will include a short description of the author and the posts that this author has published. You can access the author page just by clicking the Author’s name at the post meta under the post title. The Author page looks like this: http://demo.codestag.com/blink/author/john/
Everything is easily configured at Users > Your Profile.
There, apart from the basic settings like username, password etc, you can add a small description at the “Biographical” and it will output the description at the author’s page.