FawkesthePhoenix wrote:i've never heard of it.
There are millions of books, maps, companions, almanachs, calenders, board games, a tv drama or movie or something, Hogfather was on Sky over Christmas and even an animated series. It is about a disc shaped world that sails through space on the back of four elephants standing on the shell of a gigantic turtle.
I don't think he shall need to worry about preventing people using his characters after he ends the series for a long time yet, he rekeases at least 2 new books per year.