Kaufman, Josh, <br/><br/>
The first 20 hours :  mastering the toughest part of learning / 
Josh Kaufman 
 -   
 - 274 pages ;  20 cm. 
<br/><br/>Includes bibliographic references 
<br/><br/><label>ISBN: </label>9780670921928 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Expertise<br/>Learning, Psychology of<br/>Self-help techniques