SINOPSIS DEL LIBRO

<p>It's common knowledge that the Enigma cipher was broken at Bletchley Park, but less is known of the background: an exhilarating spy story of secret documents smuggled across borders, hair-raising escapes, Gestapo interrogations and betrayals.<br>At the heart of it is the decisive role of Polish mathematicians and French spymasters who helped Britain's codebreakers change the course of the Second World War. X, Y & Z is the real story of how Eni...Seguir leyendo