Instruct: Classify the given review into positive or negative sentiment.
Query: Changed my life

Amazing book! This book changed my perspective on myself as an American and on the rest of the world. I feel like I was cheated in high school (and college!), not knowing some of the content covered in this book. I believe the main thesis, that history is a web of controversies that students should not only understand but contribute to, is incredibly inspiring and I would have been motivated to take more history classes had I been introduced to this perspective earlier. Overall, I recommend this book to every American -- it is a must read.