Incoming Resources
- Between silk and cyanide, a codemaker's war, 1941-1945, Leo Marks
- Secret agent, the true story of the covert war against Hitler, David Stafford
- Silent heroes, downed airmen and the French underground, Sherri Greene Ottis
- The Enigma girls, how ten teenagers broke ciphers, kept secrets, and helped win World War II, Candace Fleming
- The secret lives of codebreakers, the men and women who cracked the Enigma code at Bletchley Park, Sinclair McKay
- Geniuses at war, Bletchley Park, Colossus, and the dawn of the digital age, David A. Price
- Churchill's Ministry of Ungentlemanly Warfare, the mavericks who plotted Hitler's defeat, Giles Milton
- The double-cross system, the incredible true story of how Nazi spies were turned into double agents, by J.C. Masterman
- Churchill's deception, the dark secret that destroyed Nazi Germany, Louis C. Kilzer
- Station X, decoding Nazi secrets, Michael Smith
- Shadow knights, the secret war against Hitler, by Gary Kamiya ; with original illustrations by Jeffrey Smith ; designed by Norma Tennis ; produced by Karen Croft
- Operation Mincemeat, how a dead man and a bizarre plan fooled the Nazis and assured an allied victory, Ben Macintyre
- Codebreakers, the inside story of Bletchley Park, edited by F.H. Hinsley, Alan Stripp