The document discusses key concepts in abnormal psychology and clinical treatment, including the client, clinician, Diagnostic and Statistical Manual of Mental Disorders (DSM-IV), classification of disorders, diagnostic process, cultural formulation, treatment goals and planning, evidence-based practice, and implementation of treatment. The DSM-IV contains descriptions of psychological disorders and is published by the American Psychiatric Association. Treatment involves determining goals, appropriate treatment sites and modalities, and implementing a course of treatment considering the clinician's role and the client's characteristics and preferences.