The product is a hardcover book titled "Selected Writings of De Sade" by the authors Leonard Saint-Yves, Donald Thomas, and The Marquis. Published by Read Books in the United Kingdom, this anthology of literary theory consists of 306 pages. Written in English, the book explores the works of De Sade and is a valuable addition to anyone interested in literary studies. With a weight of 391g and dimensions of 216mm in height and 140mm in width, this book is a substantial and informative read for those delving into the literary theories of De Sade.