Just Joking: 300 Hilarious Jokes, Tricky Tongue Twisters, and Ridiculous Riddles by National Geographic Kids (Author) AN: 9781426309304 ISBN: 1426309309 Paperback Good Pre-Owned Condition Packed with the silly jokes that kids love, including knock-knocks, tongue twisters, riddles, traditional question and answer jokes, and more, Just Joking will be presented in National Geographic Kids' colorful, photo-driven style. Laughing animals, funny people, and other colorful photos are paired with each joke, adding an extra laugh on each page. National Geographic Kids' signature square trim size and candy-colored palette make this fun-filled book perfect for tossing into a backpack to share with friends at school or camp.