Since psychiatric training in medical school is brief in duration (often 4-8 weeks only), and minimal to nonexistent in many residency programs, most primary care physicians are not adequately equipped to treat psychiatric disorders, despite the fact that this role promises a significant portion of the average physician's practice. This book provides non-psychiatric physicians, especially primary care physicians, with the tools to successfully diagnose and treat psychiatric disorders in their practices. Primary care physicians are the largest prescribers of psychiatric medications in the US, where they also provide the bulk of psychiatric diagnoses and treatment, especially in traditionally underserved areas. Each chapter is devoted to a major psychiatric disorders that a primary care physician is likely to encounter in clinical practice and is formatted similarly for ease of use. Chapters include a clinical description of the disorder, proper method of diagnosis (including questions to ask, or screening tools, etc.) and differential diagnoses to consider, and appropriate treatment(s) for the diagnoses are indicated. Chapters also outline appropriate medical tests to rule out other medical conditions, and screening for specific medications and/or mental health diagnoses. The book also offers tables of the medications that are commonly prescribed for each disorder, which may include some redundancy, as there is considerable overlap in medication and dosing strategies for different illnesses, however, duplication assists in readability and user friendliness. Written by experts in the field, this book is a valuable resource to aid in the proper assessment and treatment of psychiatric disorders by the physicians who are most likely to see and treat these patients. Most psychiatric textbooks are probably not appropriate for most primary care physicians as they are far too specialized. This text fulfills a pressing clinical need.