The book written by one of the influential leaders in the field of cognitive ther apy outlines a treatment model for personality disorders based upon a comprehen sive schema focused approach the first section of the book presents the rationale for diverging from traditional short term cognitive therapy in the cases of individu als with personality disorders and other such chronic patterns of behavior. Cognitive therapy of personality disorders third edition edited by aaron t beck denise d davis and arthur freeman this widely used practitioner resource and training tool is the definitive work on understanding and treating personality disorders from a cognitive behavioral therapy cbt perspective read more . Freemans research and clinical interests include marital and family therapy and cognitive behavioral treatment of depression anxiety and personality disorders denise d davis phd is a founding fellow of the academy of cognitive therapy and has collaborated with drs beck and freeman and other associates of the beck center since completing an extramural postdoctoral fellowship there in 1984. Cognitive therapy for personality disorders provides a thorough description of how to apply cognitive behavioural therapy to patients who are traditionally regarded as being difficult to treat those with borderline personality disorders and those with antisocial personality disorders