This spring, I posted about the Diagram Prize for Oddest Book Title of the Year. I recently found out that The Bookseller has crowned the Diagram of Diagrams, bestowing the title of Oddest Book Title among all the winners of the past 30 years.

You may be surprised to find that Bombproof your Horse and The Big Book of Lesbian Horse Stories did not win. In second and third place, respectively, were People Who Don’t Know They’re Dead and How to Avoid Huge Ships. But the coveted crown went to Greek Rural Postmen and Their Cancellation Numbers. Apparently, it’s a comprehensive record of a sector of Greece’s postal routes. Why, we may never know.

Besides the book titles, what I think is hilarious is that the original prize was conceived by The Diagram Group’s Bruce Robertson “as a way to avoid boredom at the Frankfurt Book Fair.” See what creative wonders the idle mind can accomplish?