Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent Discworld book

I've been a big fan of Pratchett for a long time now and I've re-read most of the discworld books. This one holds up to the test, even through the third reading of it. Great introduction to Detritus and Angua. Vimes and Vetinari become very real, especially through their weakness and faults.Definitely in the top five of my favorite discworld books.