I bought it and read most of it. I tried the procrastination exercise and one of the depression exercises once but had trouble with them. I might go back and really put effort into doing the exercises. Overall I thought the book was interesting and somewhat helpful but I'm just too lazy to do the exercises. I wrote answers in the book like he suggests but didn't get much farther than that. The one thing that I really did find useful though is his depression and anxiety tests that tell you how depressed or anxious you are.