Tricky Puzzles Books

Not only are these puzzles fun, they also help to develop skills in questioning, deduction, logic, and, of course, lateral thinking.

Photos show close-ups of ordinary objects, and offer a tantalizing clue in words, often a taunting rhyme or quotation. The answers appear on another page, where you see the objects the way you usually look at them.

The longer you look, the more you get fooled. That's the fun of optical illusion puzzles. Coins rearrange themselves. Pictures disappear and reappear. Numbers add up to the same sum even when you remove some of them. Study a landscape and find 164 hidden objects. Stare into a 3-D picture until a ball is caught. See which knots won't really tie anything. Trace some mazes with only one right path, and one with over 600. 4-color illustration

An obsessive collection of 1,000 challenges, puzzles, riddles, illusions-both original as well as must-do classics. Jam-packed on the page and illustrated throughout in full-color, with a visual for each entry, the book, opened anywhere, is like a call to action.