The product is the 53rd edition hardcover book titled "1999 Physicians' Desk Reference" by PDR Staff and Medical Economics Staff. Published by PDR Network, LLC in 1998, this revised edition textbook focused on drug guides, pharmacy, and pharmacology contains 5 pages filled with medications and pharmacological information. The book is illustrated and weighs 116 oz, making it a valuable resource for medical professionals and students in the field. It is library-hospital version with a Dewey Decimal of 615.1 and ISBNs of 9781563632884 and 1563632888.