Synopsis: "Packed with even more of the silly jokes that kids love, including knock-knocks, tongue twisters, riddles, traditional question and answer jokes, and more, Just Joking 2 will be presented in the colorful, photo-driven style, only National Geographic Kids can do. 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-…