Recounts the fascinating story of spies and spying from the cloak-and-dagger machinations of the Ancient Greeks and Romans to the high-tech surveillance operations of the post-9/11, post-truth world.
A scholar of Hellenistic and Prussian history, Droysen developed a historical theory that at the time was unprecedented in range and depth, and which remains to the present day a valuable key for understanding history as both an idea and a professional practice.