How to Optimize Your Content for Authorship Success
ProBlogger
AUGUST 24, 2014
&]rel=author query parameter and @rel DOES NOT contain nofollow. Convince and Convert suggests that the sweet spot of curation (non self-promotional) vs. self-promotional linking to your site 25-50% of the time generates the best results. Metadata on Twitter. Your content’s @href contains a G+ profile link with the [?&]rel=author
54 
Let's personalize your content