Book excerpt: Edited by the founder of the field, this is the first handbook on positive clinical psychology—a revolutionary approach that places equal importance on both the positive and negative aspects of mental health and well-being. The first handbook on positive clinical psychology, a revolutionary approach that places equal importance on the positive and negative aspects of mental health and well-being Brings together new work from authorities in positive psychology and clinical psychology to offer an integrated examination of well-being as it relates to personality, psychopathology, psychological treatments, and more Discusses theory, research, and practice across a broad range of topics such as optimism, positive affect, well-being therapy, childhood well-being, evolutionary perspectives, and clinical implementation Contains essential information for researchers, instructors and practitioners in clinical psychology, positive psychology, mental health, and well-being in general