This third edition of Essentials of Psychopharmacology is, like its predecessors, based on the premier textbook in the field, The American Psychiatric Publishing Textbook of Psychopharmacology, now in its fourth edition. The Essentials format is designed to deliver core knowledge to the busy trainee or practitioner in a succinct and accessible manner. Essentials of Psychopharmacology provides a complete overview of clinically focused pharmacotherapeutic principles of vital interest to psychiatry residents, primary care physicians, and other health care professionals. Updated with the latest research findings since the publishing of the fourth edition, Essentials features new chapters on recently introduced medications and updated chapters on others. The book is divided into two parts: Classes of Psychiatric Treatments, which systematically reviews psychotropic medications within each drug class (e.g., antidepressants and anxiolytics, antipsychotics), and Psychopharmacological Treatment, which outlines current pharmacotherapeutic approaches in the major psychiatric disorders as well as in specific patient populations. Although the latter part has been streamlined in this new edition, coverage of critical information such as approved indications, drug interactions, side effects, and other prescribing factors remains comprehensive. Clinicians seeking a reliable reference and guide to the core knowledge base and practice of clinical psychopharmacology can do no better than this new edition of Essentials of Psychopharmacology.