The Josh Kirby Poster Book was published in 1989, the book comprises of thirteen medium sized posters which are of Josh Kirby's illustrations for several Discworld and non-Discworld Terry Pratchett novels. The last three are of close ups of characters from some of these illustrations. The book also contains two introductions one by Josh Kirby and the other by Terry Pratchett. Some of these illustrations were reprinted in other works such as The Josh Kirby Discworld Portfolio.