Top Secret Ultra

By Peter Calvocoressi

The Ultra codes were used by the Luftwaffe in WWII to carry some of Germany's most secret information and was famously broken by the activities of Bletchley Park. Peter Calvocoressi was assigned to a section of Bletchley dealing with Luftwaffe Ultra intelligence where - as deputy head and, from 1944, as head, he spent the rest of the war translating and interpreting decrypted Enigma signals. Written by Peter himself this work has been updated with exciting new material from his son David and from renowned historian and author (specialising in signals intelligence) Dr Joel Greenberg.

Calvocoressi recounts his first-hand experiences at Bletchley in Top Secret Ultra. This is required reading for anybody with an interest in this utterly and indisputably fascinating aspect of the Allied war effort during WWII.

Size: 155 x 234mm, 256 pages, ISBN: 9781805001256