25 Years of the Diary of Jack The Ripper. Signed by the Author. Mango Books – 2017 – Limited Edition – Number 17 out of 500. Number of pages: 154. Spine and page edges show some signs of use and shelf wear. Handwritten Annotations – None. All proceeds from our charity shop sales go to support the work of Books2Africa, a UK registered UK charity (no 1152599) sending books and educational materials to communities in Africa.