Sign into your Gmail. In the upper right hand corner you will see your Google profile picture. Click it. Then click view profile.
That will take you into your Google+ profile. Click the About section at the top. Then scroll down to the section labeled Links and hit Edit. It will be listed just under the Contributor To section.
Under the Contributor To section hit ‘Add Custom Link’. Label: Your Blog Link: http://www.yourblog.com. Then click Save.
Now that you are back at your Google+ profile window. Copy your Google+ URL.
Now in your blog post link your name to your Google+ page. Make sure to include ?rel=author at the end of the link instead. So in my case the text ‘Blog post by: Sean Green’ is linked to the URL https://plus.google.com/u/0/101106610066450005756?rel=author Your URL obviously will be slightly different because your Google+ page will have a different number.
Okay, but how do I know if it’s working? Good question, go to Google’s Structured Data Testing Tool. Enter in the URL of your blog post.