Here's a very intriguing book that promises hours of entertainment for both older children and adults. Five two-page spreads printed on sturdy card stock present mind-boggling optical puzzles, illusions, and tricks. Each spread is focused to present dissimilar demonstrations that show how our brains process differing types of information. They are titled as follows-- Mind Bogglers Optical Illusions Magic Tricks Optical Inventions Light Secrets The illustrations, pop-ups, and lift-the-flap features on each spread will fool the eye and trick the brain. They include illusions based on colors, spatial dimensions, and changing angles of observation. There is even an easy-to-assemble Zoetrope for readers to remove from the book, put together, and then spin in order to create the illusion of a moving picture. Here are fun-to-take tests and fun-to-do projects that show how the human brain can be fooled, confused, and tricked into seeing things that aren't really there.