Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent, Fascinating, Well-Written

This is one of the best books that I have read on any topic. The science of cancer is fascinating because it involves almost all aspects of cell biology. This book presents the subject in a clear, well-organized manner based on the experimental evidence. The author draws conclusions carefully always including possible alternative explanations so the reader senses the full complexity of the problem. He expresses a welcome skepticism about current cancer treatments and frankly discusses the controversies involved. The author has successfully organized a huge body of information in a way that makes it easy to read and understand.