Title: Ultra hush-hush
Description: Provides an inside look at some of the real-life deceptions that turned the tide of World War II, describing the creative strategies that were used by all sides during the war.
Subjects: Secret service, Juvenile literature, Espionage, World War, 1939-1945, Spies, Deception, Cryptography, Guerre mondiale, 1939-1945, Ouvrages pour la jeunesse, Service secret, Déception (Science militaire), Cryptographie