The time-tested, most popular board prep resource—updated to reflect the newest Step 1 exam

First Aid for the USMLE Step 1 is a veritable blueprint for preparing for this critical exam, revealing all the content you will encounter on test day. This unmatched text is written by carefully chosen students who excelled on the Step 1 exam and reviewed by top faculty—ensuring the content is relevant, high-yield, and accurate. The book is organized and formatted in ways that help you easily hone in on the most important content.

The new edition of First Aid for the USMLE Step 1 is filled with 1,000 color clinical images, including more depicting diverse patients; 1,300+ high-yield facts and mnemonics, organized by basic principles and organ system; and invaluable test-taking advice. There’s a reason for the longstanding success of First Aid for the USMLE Step 1. Once you open the 2025 edition, you’ll instantly understand why it’s a resource you can’t be without!