Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Too Much Polemic

I was so looking forward to a good book on the geology and history of Texas rivers. I was disappointed. The travelogues are sketchy but useful. In every chapter, over and over again, we hear that industrilization is bad for rivers, dams stop the free flow of rivers, and that Ango settlers stole the land from native Americans. Yes, that's true and probably can be profitably discussed in a preface. Something like John Graves "Good Bye to a River" engenders sympathy and makes you care about the rivers. Huser's treatment of the subject leaves the reader merely irritated at the author.