H. Peter Pfeufer

Provides a sidebarwidget with some information about the author of a blogarticle. Add a new field to your profile-page where you can upload a photo which will be used for the widget.
Features
<ul>
<li>simple installation.</li>
<li>new field in “your profile” for your own photo.</li>
</ul>
Translations
<ul>
<li>English</li>
<li>German</li>
</ul>

About The Autor

Provides a sidebarwidget with some information about the author of a blogarticle.

Brandon Allen

This plugin allows full control of your user permalinks, allowing you to change both the author base (the ‘/author/’ portion of the author URLs), and the author slug (defaults to the username of the author). You can set the author base globally, or you can set it to be user-specific based on a user’s role. You now have the power to craft the perfect URL structure for you Author pages.
WordPress default structure http://example.com/author/username/.
Edit Author Slug allows for http://example.com/ninja/master-ninja/.
Using a role-based author base would allow for http://example.com/ida/master-splinter/ (for an Administrator Role), or http://example.com/koga/leonardo/ (for a Subscriber Role).
Development of this plugin takes place on <a href="https://github.com/thebrandonallen/edit-author-slug/" title="Edit Author Slug on Github" rel="nofollow ugc">GitHub</a>. Pull requests are always welcome!
Translations should be submitted to <a href="https://translate.wordpress.org/projects/wp-plugins/edit-author-slug" rel="nofollow ugc">Translate WordPress</a>.

Edit Author Slug

Allows an admin (or capable user) to edit the author slug of a user, and change the author base.

About The Autor vs Edit Author Slug