"This book presents categories of puzzles such as optical illusions, brainteasers, hidden objects, mazes, and geometric puzzles."@en
"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."@en
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