Bücher von Fred Penzel (Executive Director of the Western Suffolk Psychological Services, Huntington, New York)

Fred Penzel, Ph.D., has been dedicated to the treatment of obsessive-compulsive disorders since 1982. He is a frequent contributor to the newsletters of both the Obsessive-Compulsive Foundation and the Trichotillomania Learning Center, and is the only psychologist to sit on the Science Advisory Boards of both organizations. He is the Executive Director of Western Suffolk Psychological Services in Huntington, New York.