Sigint


The Puzzle Palace: Inside the National Security Agency, America's Most Secret Intelligence Organization
Body of Secrets: Anatomy of the Ultra-Secret National Security Agency from the Cold War Through the Dawn of a New Century
The Guerrilla's Guide to Signals Intelligence
The Codebreakers: The Comprehensive History of Secret Communication from Ancient Times to the Internet
Queens of Code: Inspiring True Stories from NSA’s Computing Women (Labor and Technology)
The Searchers: Radio Intercept in the Two World Wars
Revealing Secrets: An unofficial history of Australian Signals intelligence and the advent of cyber
The Second World War
Intercept: The Secret History of Computers and Spies
Arctic Convoys: Bletchley Park and the War for the Seas
Inside Pine Gap: The Spy Who Came in from the Desert
The Puzzle Palace: A Report on NSA, America's Most Secret Agency
The Searchers: Radio Intercept in Two World Wars: How Radio Interception Changed the Course of Both World Wars (Cassell Military Paperbacks) by Kenneth Macksey (5-Feb-2004) Paperback
Wellenkrieg: Agentenfunk und Funkaufklärung des Bundesnachrichtendienstes 1945-1968 (Veröffentlichungen der Unabhängigen Historikerkommission 5)
The Codebreakers of Bletchley Park: The Secret Intelligence Station that Helped Defeat the Nazis