Gelb, Michael J. <br/><br/>
Da Vinci decoded :  discovering the spiritual secrets of Leonardo's seven principles / 
Michael J. Gelb 
 - New York, N.Y. :  Delacorte Press,  2004 
 - 189 p. :  ill. 
<br/><br/>Includes bibliographical references 
<br/><br/><label>ISBN: </label>0385338619 
<br/><br/><label>Subjects--Personal Names: </label><br/>LEONARDO DA VINCI  1452-1519 
<br/><br/><label>Subjects--Topical Terms: </label><br/>CREATIVE THINKING
<br/><br/><label>LC Class. No.: </label>BF408  / G442D