We all by now know that by adding the Authorship Markup to our blog we can have the author pic. Displayed in SERPs in Google. Adding the Authorship Markup is complete and possible only if the author has a Google+ profile and it has a two way link from the content to the Google+ profile of the author.
The author pic. being displayed in SERPs is surely a good thing. It correlates the content with the author and givs him an author identity and also people start recognizing the author not only by his writing but by face too.