A(n inexhaustive) list of works referenced in the Discworld series, in large part taken from the Annotated Pratchett File on lspace.org. I've included most books/poems/plays mentioned, but specifically excluded entries where it's clear that the parallels are thin, where Terry has specifically said that it's coincidence not allusion and recommendations made by the curator of the file for further reading, though I may add those in future. Now because the file peters out at Going Postal this will be a (slow) work in progress.

Sooooo, I didn't realise that goodreads doesn't allow you to add more than 100 books to a list so this is incomplete. If you visit my profile you'll see the full list on a shelf called Discworld Supplementary, and if you care to vote for anything I'd be grateful.