Amazing optical illusions /  [book] 

 - Richmond Hill, Ont. :  Firefly Books,  2004. 
 - 32 p. :  ill. (some col.) ;  24 cm. 
<br/><br/><label>ISBN: </label>155297961X (bound) :  $16.95 1552979628 (pbk.) :  $5.95 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>20049025694  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Optical illusions<br/>Illusions d'optique
<br/><br/><label>Dewey Class. No.: </label>793.8 FIR