USMLE Step 2 Secrets is an easy-to-read review perfect for busy students like you. Theodore X. O'Connell, MD ? author of several review and clinical reference books ? has thoroughly revised this popular text, which presents essential questions and answers covering the important concepts you need to know to score well on the USMLE Step 2 exam: key conditions you will be expected to recognize, all specialty and subspecialty topics, and necessary clinical concepts.