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The Origins of the National Security Agency 1940-1952

Operation REGAL: The Berlin Tunnel

On Watch- Profiles from The National Security Agencys' past 40 years

It Wasn't All Magic: The Early Struggle to Automate Cryptanalysis 1930s - 1960s

Learning from the Enemy: The GUNMAN Project

In the Shadow of War

History of the Signal Security Agency
Volume I Organization Parts I and II

Volume II

A History of U.S. Communications Security Volume 1

German Clandestine Activities in South America in World War II

History of Collaboration among French Cryptologic Agencies 1909 - 1939

The Cryptology of the German Intelligence Services

American Cryptology During the Cold War 1945-1989 Book IV

American Cryptology During the Cold War
1945-1989 Book III

American Cryptology During the Cold War
1945-1989 Book II

American Cryptology During the Cold War
1945-1989 Book I

BOURBON to Black Friday: The Allied Collaborative COMINT Effort against the Soviet Union 1945-1948

Communicator Declassified

Communicator Declassified

Communicator Declassifed