Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Revolutionary Masterpiece

1776 is one of the most descriptive and influential books I have ever read. McCullough is an extraordinary author and put every ounce of energy into writing this book. The book contains countless hours of research conducted by McCullough, and boy was it worth it. The way he describes the ups and downs of the Cause makes you more than thankful for freedom. Washington, Greene, Knox, Putnam, Howe, and Cornwallis are all the main characters along with countless others who all risked everything they had for the future of the colonies. Every American should read this book!