This text investigates the classification, etiology, and treatment of psychological disorders through a clinical and research-based framework. Jeffrey S. Nevid, a professor of psychology, utilizes current diagnostic criteria and empirical research to provide a comprehensive overview of abnormal behavior. The book serves as a foundational resource for students, integrating academic theory with practical applications in the field of mental health.

This text is widely regarded as a standard academic resource for undergraduate psychology curricula due to its structured approach and integration of digital learning tools. The material provides a dense, systematic overview suitable for students seeking a rigorous introduction to clinical psychology.