All the looniest, wackiest, zaniest grossest jokes, games, puzzles and pranks a kid could ever want in one fun book! Uncle John is back with another For Kids Only masterpiece! Book of Fun is stuffed with wacky facts, gross-out jokes, goofy games, magic tricks, puzzling puzzles, and hilarious pranks. Easy-to-read stories and gags are brought to life with silly illustrations and fun fonts (which research suggests actually help kids build reading and comprehension skills). A sample of the fun to be had:   * How to make your own whoopee cushion * Simple calculator tricks to amaze your friends * Classic riddles and mind-boggling brain teasers * Tongue twisters and word games * One-minute mysteries * Silly science tricks * Optical illusions * Lots of jokes . . . like this one: Q: Why do gorillas have big nostrils? A: Because they have big fingers.  And much, much more!