aristotle - 1:01 am on Sep 27, 2012 (gmt 0)
But they all put their name and photo on the dust cover - and Google+ verified authorship is much closer to that than asking for a physical address.
Except for authors who use pen names.
In any case, what is "Google+ verified authorship" really worth? Readers are capable of deciding for themselves if they like an author or not.