Best-Ever Therapy Book List

At wheretheclientis.com, a reader-generated list of the Best-Ever Therapy Books.  Two categories--for therapists and for everyone.  Pile on:  Email, comment, or, better still, tweet your nominations (hashtag #therapybooks). 

A couple of workbooks already nom'd as of this posting:  Get Out of Your Mind and Into Your Life, by Stephen Hayes and The Relaxation and Stress Reduction Workbook, by Martha Davis, et al.  Got a favorite?  Add it!