Discworl stamps are a series of artistamps which are directly mentioned or strongly implied in the Discworld novels by Terry Pratchett. In the Discworld fiction the stamps are printed by fictional Ankh-Morpork firm, Teemer and Spools, for the Ankh-Morpork and other regional Post Offices. They were first introduced in the book, Going Postal, as an invention by the then postmaster, Moist von Lipwig.