In its full-color, fifth edition, Mary Townsend's Psychiatric Mental Health Nursing: Concepts of Care in Evidence-Based Practice is still the most clearly written text on the subject. The stress/adaptation model remains the conceptual framework for the delivery of nursing care, providing a foundation of psychiatric mental health nursing knowledge to the student. New to this edition is an increased coverage of the biological causes of disease. Selected DSM-IV-TR disorders, such as schizophrenia, anxiety, and mood disorders, will include graphic brain illustrations and boxed information on psychobiological aspects of the disorder and its treatment, including the reasons specific medications can cause certain side effects.