The product is a hardcover textbook titled «Harrison’s Principles of Internal Medicine, 20th Edition Volume 2.» Published by McGraw-Hill Medical Publishing Division in 2018, this textbook is authored by Stephen L. Hauser, J. Larry Jameson, Anthony S. Fauci, Dan L. Longo, and Dennis L. Kasper. With a total of 4048 pages, this textbook covers various topics within the subject area of internal medicine. Written in English, this textbook is a comprehensive resource for medical students, professionals, and anyone interested in the field of internal medicine.