Here is a snippet that will enable you to show a short intro (excerpt) of the WordPress author bio of a post and not the complete bio. With this snippet you can make an excerpt of the author bio, with a link to the author page, where you can see the full bio. Instructions Add …
Heres a little tip on how to display a list of WordPress authors with avatars and username
Heres a little trick on how to remove the WordPress author prefix from the author slug (URL).
Adding this to the functions.php of your wordpress theme will change the default mysite.com/author/name to mysite.com/profile/name, however you can change this to user or anything that you would like.