The product is a rare signed first edition of Peter Ackroyd's novel "Chatterton," published in 1987 by Hamish Hamilton. The hardcover book, measuring 230mm in height and 150mm in width, weighs 507g and contains 240 pages. This sought-after collectible, part of Penguin Books LTD's catalogue, is a valuable addition to any book enthusiast's collection, showcasing the author's work in English language.