Spying in America presents over thirty cases of espionage on American soil from the Revolution to the beginning of the Cold War. Through these stories, the book illustrates the common threads in the spy cases, the evolution of American awareness about espionage, and the fitful development of American counterespionage leading up to the Cold War. The book differs from many other studies of espionage since it is written from the unique perspective of a career intelligence officer. Sulick analyzes these cases on six fundamental elements of the spies’ espionage: the motivations that drove them to spy; their access and the secrets they betrayed; their tradecraft, i.e., the techniques of concealing their espionage; their exposure; their punishment; and, finally, the damage they inflicted. The book is intended to provide a concise and highly readable introduction to the early history of spying in America.