Equal Rites - Wikipedia
The Science of Discworld - Wikipedia
Snuff (Pratchett novel) - Wikipedia
Terry Pratchett: A Life With Footnotes: The Official Biography by Rob Wilkins
Good Omens - Wikipedia
The Wee Free Men - Wikipedia
On the Ropes - Terry Pratchett - BBC Sounds Found this interview with Sir Terry from 2008 via Wikipedia. Just in case anyone else hadn't enjoyed it previously either. Personally, not sure
Unseen Academicals - Wikipedia
Terry Pratchett - Tolkien Gateway