The ultimate how-not-to-grow-up guide. The Encyclopedia of Immaturity contains more than 300 entries: How to Skip a Stone, How to Do a Wheelie, How to Hang a Spoon from Your Nose, How to Really Annoy Your Older Sibling - all painstakingly explicated and illuminated with full-color photographs, illustrations, diagrams, and the occasional footnote.

Ages: 8+