ULTRA/Bibliography

Enigma

 * Jozef Garlinski, "Intercept: Secrets of The Enigma War", J. M. Dent, London, 1979 - Describes the inital Polish work on the Enigma
 * Wladyslaw Kozaczuk, Jerzy Straszak "Enigma: How the Poles Broke the Nazi Code", Hippocrene, New York, 2004
 * Hugh Sebag-Montefiore, "Enigma: The Battle for the Code", Hoboken, John Wiley & Sons, 2001

Bletchley Park

 * Ralph Erskine, Michael Smith, (editors). "Action This Day: Bletchley Park From the Breaking of the Enigma Code to the Birth of the Modern Computer", Bantam, London, 2001
 * F. H. Hinsley, Alan Stripp, "Codebreakers: The Inside Story of Bletchley Park", Oxford University, 1993
 * Thomas Parrish, "The Ultra Americans: The U.S. Role in Breaking the Nazi Codes", Stein and Day, New York, 1986 - Covers the US personnel stationed at Blethley later in the war
 * Michael Smith, "Station X: Decoding Nazi Secrets", TV Books, New York, 2001
 * Irene Young, "Enigma Variations: Love, War, and Bletchley Park", Mainstream, Edinburgh, 1990

General works on WWII cryptanalysis
Codebreaking in World War II", Free Press, New York, 2000
 * Stephen Budiansky, "Battle of Wits: The Complete Story of
 * Peter Calvocoressi, "Top Secret Ultra", Pantheon, New York, 1980
 * Hervie Haufler, "Codebreaker's Victory: How the Allied Cryptographers Won World War II", New American Library, East Rutherford, 2003
 * Bruce Lee, "Marching Orders: The Untold Story Of World War II", Crown, New York, 1995

Related

 * Patrick Beesly, "Very Special Intelligence: The Story of the Admiralty's Operational Intelligence Centre 1939-1945", Hamish Hamilton, London, 1977 - Covers naval intelligence synthesis which used Ultra material
 * Ronald Lewin, "Ultra Goes to War", Hutchinson, London, 1978, McGraw-Hill, New York, 1978 - Covers the Allied use of Ultra material
 * Bruce Lee, "Marching Orders: The Untold Story Of World War II", Crown, New York, 1995 - Covers the Allied use of Ultra material
 * Ewen Montagu, "Beyond Top Secret Ultra", Coward, McCann and Geoghegan, New York, 1978 - Covers counter-espionage work which used Ultra material
 * Bradley F. Smith, "The Ultra-Magic Deals And the Most Secret Special Relationship, 1940 - 1946", Novato, Presidio, 1993 - Covers the US-UK collaboration on code-breaking
 * F.W. Winterbotham, "The Ultra Secret", Harper & Row, New York, 1974 - The first book in English to reveal the secret, it contains mainly information on how Ultra was used by the Allies