Great Book of Optical Illusions
Books / Paperback
ISBN: 0806962585 / Publisher: Sterling Pub Co Inc, December 1899
Presents optical illusions and explains why the eyes perceive what isn't actually so.
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A collection of wacky characters and expertly created optical illusions will fascinate youngsters as gray spots appear and disappear, straight lines wave, circles gyrate, and intricate patterns pulsate
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