CBAS is probably best known through the work of Keller and associates (1), who conducted a widely cited study comparing nefazodone, CBAS, and their combination in the treatment of depression. One effect of this study was to illustrate the augmentation of antidepressant medication with psychotherapy, in this case CBAS. However, the specific nature of CBAS requires some explication. The authors write as though the principles, theory, and efficacy of CBAS are well known to the reader and can be taken for granted. Regrettably, this book devotes only one brief chapter to CBAS basics, so that any reader who is not familiar with the system must catch up very quickly. The method is spelled out in each clinical chapter, but it would have been better if the authors had initially taken their time, detailing their theoretical rationale, citing whatever outcome studies have been done with CBAS, and comparing CBAS with more standard forms of cognitive-behavioral therapy. If the reader is not adequately persuaded of the face validity of CBAS by the end of chapter 1, there is almost no subsequent discussion of these issues.