Harrison's Principles of Internal Medicine is a comprehensive textbook authored by Anthony S. Fauci, focusing on the subject area of internal medicine. Published by McGraw-Hill Medical Publishing Division in 1997, this book is designed for medical professionals and students seeking in-depth knowledge and insights into various internal medical conditions. With a format that includes both book and other materials, this textbook is presented in English and offers a valuable resource for those studying or practicing in the field of internal medicine.