Simon -- J.J. Pryor is compiling a list of books by people on Medium with "buy" links. You do NOT have to be a Feedium writer to get on it. If interested go to the link below and add a book and the buy link. Or let me or someone else know that you want us to do it. I'm guessing that @PaulCombs and @EricPierce would be glad to do it. Jan https://medium.com/feedium/feedium-13-i-want-to-do-you-a-small-favor-for-the-holidays-dda02b1b3846