The product is a textbook titled "Essentials of Pathophysiology: Concepts of Altered Health States" written by Carol M. Porth. Published in 1993 by Lippincott Williams & Wilkins, this 4th edition book is in English and weighs 0.1 oz. With 1504 pages, this textbook covers the subject area of medical pathology and provides essential information for understanding altered health states. The revised features make it a valuable resource for students and professionals in the medical field looking to deepen their knowledge of pathophysiology.