Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Incredible. I wish something like this existed for my area..

Although I don't collect US coins I keep reading this book before going to bed for some time now. It is just incredible. What I love the most is his rather cynical tone and the fact that he has an OPINION about things and people. Seems to me this had nearly disapeared in anything written in US numimsatics... As I said, I wish I had a work like this for my area !