This Knock-Knock jokes for kids book is suitable for children of all ages and they are simple enough for the young ones to understand. They'll laugh at the jokes and will want to retell them over and over to both their family and friends.
Examples: #1 Knock, knock. Who’s there? Olive. Olive who? Olive you very much; #2 Knock, knock. Who’s there Cheetahs. Cheetahs who? Cheetahs never win; plus 63 more.