I tried to pick up Vernon's books through my university bookstore, chapters, and amazon, but can't get it because its only available in the U.K. and Australia I've heard. Has anyone else had lucking finding it, or picking it up locally?
I've also heard recommendations on Staghorn Corals of the World; A Revision of the Cenus Acropora, by Carden Wallace Museum of Tropical Queensland. ISBN 0643063919. Again though, I haven't had luck finding it locally.
Calfo also has a new book coming out this year; Book of Coral Propagation. You can currently pre-order it here:
http://www.readingtrees.com/sales_preorder_bocp.html. Since its new I haven't heard anything about how updated it is, or what has changed since the first edition.