The book "Portrait of a Killer: Jack the Ripper Case Closed" by Patricia Cornwell is a hardcover biography and true crime book published by Penguin Publishing Group in 2002. It weighs 1 pound and measures 9.4 inches in length, 6.4 inches in width, and 1.5 inches in height. The book has 400 pages and is illustrated, focusing on the topic of murder, serial killers, and the history of Europe, specifically Great Britain. The book is written in English and is considered a textbook.