Geoff Tibballs is the author of the bestselling Mammoth Book of Jokes and The Mammoth Book of Dirty Jokes as well as many other books including Business Blunders and Legal Blunders. A former journalist and press officer, he is now a full-time writer who lists his hobbies as sport, eating, drinking, and avoiding housework. He lives in Nottingham, England, with his wife and daughters.