Instruct: Classify an Amazon review as either positive or negative.
Query: Fascinating - reading it now

This is the only book I've read on water wheels, but it's fascinating. It seems like a pretty thorough history going back as far as possible, and it discusses theories about how the ideas developed and includes many drawings and a few photographs. Lot of material here. Seems pretty thorough and interesting and authoritative for a textbook on *any* subject.