Case Files Psychiatry, Sixth Edition, authored by Eugene C. Toy, offers a comprehensive guide for medical students and residents focusing on developing critical thinking skills essential for clerkship exams and the shelf exam. This sixth edition presents 60 high-yield clinical cases that simulate real-life scenarios in psychiatric care. Each case starts with a detailed vignette followed by open-ended questions designed to teach diagnostic or therapeutic approaches aligned with current psychiatry practices, emphasizing mechanisms and underlying principles. The book features an updated format with bulleted summaries, concise paragraphs, and clear headings, making complex concepts more accessible. USMLE-style review questions and clinical pearls are included at the end of each case to reinforce learning. Additionally, it provides a primer on how to approach clinical problems and think like an experienced doctor. With its 608 pages, this edition is a valuable resource for mastering psychiatric care in a practical and engaging manner.