Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Love the book!

I read the book but it was borrowed via an inter-library loan. I ordered the book a week ago because I went to a talk by the author. Very interesting stuff. This discovery totally revolutionized how Parkinson's disease is being studied. Without the findings documented in this book, there would never have been animal models for drug development and the deep brain stimulation surgery. It is a book that worth reading, many times over.