Without the American Revolution, the United States would not be what it is today, and without the help of important men and women, the United States may not have won its independence. One of the most important roles a person could play was that of a spy. Spies were important to both sides of the war. Read all about the men and women who helped the United States win the war of independence through secrets, disguises, and dangerous missions. This book introduces readers to America's history in an engaging way, with photographs and illustrations, colorful designs, a glossary, and a Find Out More section.