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First you see one thing, then another The picture changes from one moment to the next, flipflopping back and forth Thats an ambiguous illusion, and the ones in this largestever collection offer constant, pleasurable surprises Sometimes, the perceptual shift occurs if you just stare at the visual puzzle long enough; in other cases, its necessary to invert or rotate the image first In one picture, its a catandmouse game as you try to discover where ISBN10: 1402718292 ISBN13: 9781402718298 Material Type: paperback
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ISBN10:1402718292
ISBN13: 9781402718298
Publisher: