Joe wrote the foreward and it has a different nicer cover than shown and this is probably the only copy he signed!
9780141332499
Author: Doyle, Conan, Binding: Paperback, Imprint: Puffin Classics, Series: Puffin Classics, Publisher: Penguin Random House Children's UK, Published: 30/03/1995, Pagination: 320 pages, Classification: Children's, young adult & educational, Country of Publication: United Kingdom