Optical illusions trick your mind and confound your perception, and that's why these images--including three-dimensional mazes--will drive you crazy in the best of ways. Stare at a circular checkerboard closely; it will seem to pulsate and shimmer. And do those black-and-white patches actually link up to form the petals of a flower? Determine which twin brother has a bigger appetite by glancing at a drawing of both. (These guys don't look the same...or do they?) The only thing that won't be an illusion is the fun you're having.
I've seen some of the illusions in this book in the ripleys believe it or not museum. Some of the illusions involve turning a picture upside down and seeing a totally different picture, mazes, those black and white optical illusion spirals that looks like their moving, thinking puzzles and much much more. Worth every cent.
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