This text investigates the classification, etiology, and treatment of psychological disorders through a clinical and empirical lens. Morton G. Harmatz provides a comprehensive overview of abnormal behavior, utilizing established diagnostic criteria and research-based frameworks to explain the complexities of mental health. The book serves as a foundational resource for students and practitioners, synthesizing historical perspectives with contemporary clinical standards to define the boundaries of psychological dysfunction.

Academic reviewers and educators frequently cite this work for its structured approach to complex diagnostic categories. It is widely recognized as a standard introductory text for undergraduate students seeking a clear, systematic understanding of abnormal psychology.