Krug, Steve. <br/><br/>
Don't make me think :  a common sense approach to web usability / 

 - 2nd ed. 
 - California :  New Riders,  c2006. 
 - xiii, 201 p. :  ill. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0321344758 
<br/><br/><label>LC Class. No.: </label>D2517 
<br/><br/><label>Dewey Class. No.: </label>006.7  / KRU