Now in paperback—the award-winning National Geographic book that presents the untold story of the invisible war behind the American Revolution. A riveting tale of intrigue, spies, counterspies and secret agents, George Washington, Spymasteris a unique a
Mary Edwards Walker was unconventional for her time: She was one of the first women doctors in the country, she was a suffragist, and she wore pants! And when the Civil War struck, she took to the battlefields in a modified Union uniform as a commissioned
