The Lecture Notes for the USMLE Step 1 by Kaplan Medical, Twelfth Edition (new for 2025-2026), provide a color-coded review that identifies high-yield topics in each science—an overall yet concise approach that will help you focus your studying to succeed on the exam. These are the same books used in Kaplan Medical courses and trusted by thousands of students each year to pass the USMLE Step 1. The 7 volumes - Pathology, Pharmacology, Physiology, Biochemistry/Medical Genetics, Immunology/Microbiology, Anatomy, and Behavioral Science/Social Sciences - are updated annually by Kaplan's team of leading experts.

The Best Review

• 2,600 pages covering every science you will need for this section of the exams
• Color diagrams and charts for better understanding and retention
• Clinical correlations and bridges between sciences highlighted throughout
• Study guides and summaries at the end of each chapter for easier review
• Updated content with clinical updates across all 7 volumes to align with recent changes
• Organized in outline format with high-yield box summaries for efficient studying

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