Len Shackleton never won a thing - not a League Championship medal, not an FA Cup medal, not even a medal for topping the old Second Division. Not only that, but 'Shack', as he was known affectionately, collected only five England caps. His legion of admirers regard that as an insult to the outstanding ability of this unusual footballer. They dubbed 'Shack' the 'Clown Prince of Soccer', but was he really more prince than clown? That is one of the intriguing questions Colin Malam answers in this fascinating biography.