<p/><br></br><p><b> About the Book </b></p></br></br>Unique way to get the mental exercise you need. The workout here is more focused as you'll be asked to draw on your powers of observation and visual reasoning skills in order to unlock the tricks behind these illusions. Perfect travel size!<p/><br></br><p><b> Book Synopsis </b></p></br></br><b><i>Optical Illusions</i> is a fun and unique way to get the mental exercise you need.</b><ul><li>Use observation and visual reasoning skills in order to unlock the tricks behind these illusions.</li><li>A variety of different optical illusions, from tricks of perspective to perceived motion, are included to keep you entertained.</li><li>Great size for travel: 7-1/8 x 5-1/2 x 7/8 inches.</li><li>Answer key in the back of the book.</li><li>Spiral bound, 256 pages</li></ul>
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