From the reviews: "This is a comprehensive textbook of individual sleep scales that are used in clinical and/or research practices. ... Although targeted primarily for sleep clinicians and sleep researchers, the book also may be useful for medical students, residents, fellows, sleep technologists, or other members of the medical team. ... It provides an extensive compilation of the relevant scales and questionnaires that are used in the field of sleep medicine." (Margaret Park, Doody's Review Service, May, 2012)