Diskworld book 19: Feet of Clayreally made up for the previous book, Masquerade. I seriously love the character Carrot and his seemingly simple but truly complex view of the world. This book presented slavery and racism in a very interesting and ridiculous manner(Reductio ad absurdum, perhaps?). I also really enjoyed the bit about atheism, comparing it to a religion, He presents, if not defends the theological(read the book) point of view.
With a weird yet amusing coincidence I happened to start
diskworld book 20: Hogfatherearlier this week and finished it today. On the surface Pratchett seems to borrow heavily from Tim Burton's "A Nightmare Before Christmas". He has admitted that he often borrows from other stories. Adding in his own twists and tweaks. Though sticking to his style it has a deeper underlying message; the nature and power of belief.
The more I read his books the more I see why he's being viewed as a philosopher