Zweig, David <br/><br/>
Invisibles: the power of anonymous work in an age of relentless self- promotion 

 - New York  Portfolio  2014 
 - 248p. 
<br/><br/><label>ISBN: </label>9781591846345 
<br/><br/><label>Dewey Class. No.: </label>650.1  Z92I