Harrison's Pretest is an excellent book and extremely helpful in preparing for usmle. The questions are in the form of clinical vignette. This easy to use resource helps you build your mastery of the most important principles and facts in medicine. The questions challenge your grasp of everything from fundamentals to latest findings in medicine. Physicians and students wishing to test their skills and residents preparing for the internal medicine boards will find this self-assessment and review invaluable. the text contains questions that reflect the form and content of the medical board exam. Answers and detailed explanations are provided, plus thorough references with illustrations. (roshan purohit)