Instruct: Classify an Amazon review into positive or negative sentiment.
Query: I'm impressed!

I bought this book because I wanted to know where things are in the world. Everytime I read a book that talks about countries or places, I know "in general" where those are but not really, and some not at all. This book taught me that and so much more. It's well written, easy to understand and very entertaining. What once was a boring topic to me is now a fascination. It's money well spent........buy it!