The product is the Twenty-Second Edition of Harrison's Principles of Internal Medicine, including both Volume 1 and Volume 2. Published by McGraw-Hill Medical Publishing Division in 2025, this textbook covers the subject area of internal medicine in English language. It is authored by J. Larry Jameson, Stephen Hauser, Anthony S. Fauci, Dennis L. Kasper, and Dan Longo, making it a comprehensive resource for medical students, professionals, and educators in the field. This international edition features a mixed lot format and is a valuable addition to any medical library.