This three-volume set includes 875 entries focused on six broad areas: mental disorders and conditions, treatment, tests and assessment methods, common psychological terms and concepts, individuals and organizations, and popular and classic books and movies. It includes a wide variety of entries such as "Addiction," "Jeffrey Dahmer," "Hip-Hop Music," "Carl Jung," "One Flew over the Cuckoo's Nest," "Support Groups," "Transgender," the "Wechsler Adult Intelligence Scale (WAIS)," and "Xanax."