webindia123 - 4:06 pm on Oct 25, 2012 (gmt 0)

As a successful book author in the "real" world, I'll tell you that if I went to my publisher and said I wanted my next book to be published under a different name (without a good reason), they'd go nuts. Branding is critical in book sales

Online presence in G+ would further complement your authority and help in generating more online sales.

Online buyers would be able to know more about your works through peers and circles. So in a way it could be supportive in enhancing sales.

There's no harm having G+ account especially when you are able to attain SERP inventory too.