Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I couldn't put it down.

This book is a gem. One of the best I have ever read. Here's some example of what I mean by one of the best:1. I was emotionally involved in the characters. By the end of the book, I felt sympathy for them, cried with them, and was happy for them.2. I couldn't put the book down. I am a slow reader, but flew through this book in record time. All of my spare time I wanted to spend reading this book.3. It won the Pulitzer!4. Chabon came up with an amazing way of weaving a tale that incorporates both fantasy and reality. This story may be about a seemingly lighthearted topic on the cover synopsis (comics), but in reality, it's a story about human relationships and life. I was deeply moved by the story.5. The book had an underlying theme of escape. It's a profound statement for times such as those we live in. Escape is noble goal. This book helped me escape, but provoked some good thinking as well.I highly recommend this book to anyone who enjoys good literature.