Download or read book Spies and Spymasters of the Civil War written by Donald E. Markle and published by . This book was released on 1994 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although documentation shows that the American Civil War was conducted in large part by amateurs, the activities of spies gained some unprecedented sophistication thanks to new technology - photography, telegraphs and even hot-air balloons. Donald E. Markle details the rapid advances in methods of covert communication via newspaper and telegraph, and their efforts on the war front. Enemy newspapers, for instance, became a coveted asset for the spy.