Humorous self-help book "How to Poo on a Date: The Lovers' Guide to Toilet Etiquette" triumphed Friday in the quirky Diagram Prize.
Organizers said the book, published by Prion Press, received 30 percent of votes in an online ballot. It beat other finalists including "Are Trout South African?" and "Working Class Cats: The Bodega Cats of New York City."
The prize, founded in 1978, is run by the British trade magazine The Bookseller. Read on to see highlights of past winners.