Instruct: Classify an Amazon review into positive or negative sentiment.
Query: Highly Recommended!

Coal doesn't leap to one's mind as a terribly interesting topic, now does it? This book, however, proves fascinating from start to finish. It depicts the commodity's influence on human survival, suffering, and industrial growth in a captivating presentation. Looking at coal's history provides fresh insights into parts of history we're already familiar with. I've literally lost sleep over this book - couldn't put it down!