Spycraft: The Secret History of the CIA's Spytechs, from Communism to Al-Qaeda
Eyes in the Sky: Eisenhower, the CIA and Cold War Aerial Espionage
Body of Secrets: Anatomy of the Ultra-Secret National Security Agency
Deep Black: Space Espionage and National Security
Eye in the Sky: The Story of the Corona Spy Satellites (Smithsonian History of Aviation and Spaceflight (Paperback))
Spy Satellite manual (Owners' Workshop Manual)
The Master of Disguise: My Secret Life in the CIA
Computer Security: Principles and Practice (2nd Edition) (Stallings)
Cryptography and Network Security: Principles and Practice (7th Edition)