For those who want to add the author snippet to any WordPress theme (including Genesis), try this thorough tutorial by Yoast. For those who want to simply install a plugin and let it do all the work, read on!
1. Add the Google Authorship Plugin for Multiple Authors by Keyword Strategy (search for Google Authorship from within your Dashboard – Plugins – Add New screen). Don’t forget to “activate” it.
2. This will add a new field in your Profile page. It looks like this:
3. Add your Google+ Profile URL. An example Google+ url is provided. The “Location” and “Width” is referring to the Google+ badge that is automatically added to your site. On The Vacation Gals, it looks like this:
I recommend changing the “Location” box to “hidden” because its really not that pretty, is it?