What Colour is Your Dog?

From today's World Wide Words, ed. M. Quinion:

"TITULAR ODDITIES Yesterday, the Bookseller magazine announced its
shortlist for the Diagram Prize, which showcases the strangest book
titles of the year. A Mills & Boon bonkbuster, an examination of
the ongoing debate surrounding organ procurement, and a guide to
managing a dental practice are among the titles. The literary award
was conceived in 1978 to avoid boredom at the annual Frankfurt Book
Fair and has been held in all but two years since. The shortlist
is: What Color Is Your Dog?; Managing a Dental Practice the Genghis
Khan Way; Myth of the Social Volcano; The Generosity of the Dead;
the 8th International Friction Stir Welding Symposium Proceedings;
and The Italian's One-night Love-child. Public voting is now open
at http://www.thebookseller.com/. The winner will be announced on
25 March."