The book progresses chronologically and thematically, beginning with fundamental concepts and early technologies, then moves through aerial reconnaissance, electronic surveillance, and cryptographic systems, culminating in an analysis of modern cyber espionage. ""Spy Technology"" uniquely examines espionage technology not just as a tool of statecraft but also as a driver of broader technological and societal change, highlighting unintended consequences and far-reaching effects on society.
This approach provides a valuable perspective for those interested in military history, technology, and the ethical implications of surveillance.