National Geographic Kids Just Joking Laugh-Out-Loud Collector"s Set is packed with three books of 900 silly jokes that kids love, paired with photos of laughing animals and funny people. Featuring National Geographic Kids" signature square trim size and candy-colored palette, each hilarious party-starter is perfect for tossing into a backpack to share with friends at school or camp. The set also includes a free poster that kids can hang in their room, locker, or anywhere they choose!