Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Entertaining and Educational

To Rule the Waves is one of those rare books that you find very entertaining and at the same time really learn the subject. After reading, "To Rule the Waves" I really learned a lot about the British Navy. I also really enjoyed reading this book. It was like reading an exciting novel. In short, if you want to read a great book that reads like a novel and really learn about the history of not only England, but its navy as well get this book. This book was time and money well spent.