“Yeah, this isn't really a book. It does have an ISBN, though, so I'm counting it.
It's got some pretty funny stuff in it about the various explorers of the Discworld, and comments from Pratchett and Briggs about the making of the map, but it's not really a book.
Great fun, though, and perfect for what it is. I'm thinking it'll be interesting to refer to next time I read a Discworld book.”