Instruct: Classify Amazon reviews into positive or negative sentiment
Query: It's OK, but not worth the price.

Overall, this book was a mildly interesting, quick read, probably suitable for a weekend around the house. I found myself, however, mildly fatigued due to the awkwardly strung together facts, as if they were simply plucked from their sources and placed on paper with a minimum of effort. Unfortunately, except for a few points, any information in this book isn't "new" and could probably be found, with some effort, in encyclopedia's, National Geographic, etc. In my opinion, I would be willing to pay as much as seven dollars for this book, however, not the publisher's price, demanded by such obvious esoteric subject matter.