Optical illusions  : over 70 of the most mind-bending, brain-melting, illusions ever invented 
/ compiled by Tim Leng 
 - 128 pages :  color illustrations 
<br/><br/><label>ISBN: </label>9781909313088 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Optical illusions
<br/><br/><label>Dewey Class. No.: </label>152.14