The award-winning New York Times bestseller about the American women who secretly served as codebreakers during World War II--a "prodigiously researched and eng
Discover the true stories of code breakers who worked behind the scenes during World War II. Men and women cracked enemy codes in order to gain information that
"The author, Bengt Beckman, for many years was the head of the cryptanalysis department of the Swedish signal intelligence agency. He has crafted a book that a