Knock knock. Who's there? Boo. Boo who? Don't cry, it's only a joke! And many other tried-and-tested favourite 'knock knocks' that will entertain first-time joke-tellers and their families and friends for ages.
- Format: Paperback
- Pages: 80 pages, illustrations
- Publisher: Random House Children's Publishers UK
- Publication Date: 01/01/2002
- Category: Humour & jokes (Children's/YA)
- ISBN: 9780552546928