Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Usable, but sketchy and biased

This book, like many books on this subject which approach the issue with an agenda, is not particularly useful for the average reader. While there are a lot of facts, most are taken out of context and inserted into a political scheme. The research seems decent but there are a lot of weak points. All in all, I found that this book was somewhat useful for doing scholarly research but I would strongly urge casual readers or readers of 'first impression' to steer clear of such obvious propaganda.