The recent development of cognitive theories and therapies within the ranks of behavior therapy has to be classified as one of the more intriguing developments in contemporary clinical psychology. After all, "behaviorists" have long been stereotyped as cold, hard-headed environmentalists who have been anything but subtle in their at tacks on mentalism. To those who have accepted such a stereotype, a "cognitive behavior therapist" might sound like a self-contradic tory creature, one steeped...