Adobe photoshop CS6 :  classroom in a book: the official training workbook from adobe systems / 

 - Berkeley, California:  Adobe Press,  c2012. 
 - viii, 325 p. :   col. ill. ;   25 cm. 
<br/><br/>Includes index. 
<br/><br/><label>ISBN: </label>978-0-321-22733-3 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Image processing --Digital techniques. <br/>Adobe photoshop.