The most shoplifted author in the UK, Sir Terry John David Pratchett must also be the most influential writer of comedy at the moment. His previous jobs included journalist and press officer for a nuclear power plant. He was knighted in 2008, but has also been recently diagnosed with the early onset of Alzheimers.
He is most famous for creating the Discworld the normalised world that flies on a turtle, on the back of four giant elephants. His biggest characters in the book are Death, the Librarian and Rincewind, recently played by Sir David Jason.
Here are his 10 top publications, according to Amazon.co.uk's grade and number of reviews. (note the Amazon.com website has different levels/numbers of reviews) Note I've tried to find the first general editions under review, rather than illustrated editions, or audio editions, as it confuses the rating. I've also discounted the diaries as just tie-ins.
(No, I don't know what's particularly special about Feet of Clay either, except for the fact that it features the Watch)
1. Feet of Clay 5/5 (33 reviews)
2. Nanny Ogg's Cookbook 5/5 (26 reviews)
3. Lords and Ladies 5/5 (23 reviews)
4. Truckers 5/5 (12 reviews)
5. Only You Can Save Mankind 5/5 (8 reviews)
6. Wings 5/5 (7 reviews)
7. The Discworld Companion 5/5 (4 reviews)
8. The Amazing Maurice and the Educated Rodents 5/5 (3 reviews)
9. Going Postal 5/5 (2 reviews)
10. Diggers 5/5 (1 review)