The only comprehensive Q&A review for the USMLE Step directly linked to from Dr. Le's, this essential study guide offers 1000 board-style questions and answers, easy-to-navigate, high yield explanations for correct and incorrect answers, and more than 350 accompanying images. 1000 board-style questions and answers -- reviewed and approved -- by students who just aced the exam. Detailed explanations for both right and wrong answers - with letter options in boldface for at-a-glance review. Chapters keyed to Dr. Le's so you can simultaneously review questions and high-yield facts. 130+ high-yield images, diagrams, and tables. One complete practice exam consisting of 7 blocks of 50 questions simulates the exam experience.