Böcker av Joel Greenberg

Tells the story of Bletchley Park through the words of the codebreakers Draws on one hundred letters and other declassified communications written as the war unfolded Immersive and personal, the letters reveal the true feelings of the participants Includes biographies of the letter writers Uncovers details about the operational successes and failures at Bletchley Offers a rare look at personal and departmental rivalry at Bletchley Park Will appeal to historians, WWII researchers and anyone interested in the secrets of Britains signal intelligence effort Includes never-before published photographs of Bletchley Park codebreakers

The untold story of one of Bletchley Park's less-celebrated geniuses Sets the record straight about the wartime contributions of Denniston, Knox and the Polish codebreakers Tells the extraordinary story behind the publication of Welchman's book

A ground-breaking biography of the man who led Britain s code-breaking efforts in both world wars.

Chicago's landscape inspired musings from residents and visitors alike. This title contains these musings from the land to present a green portrait of Chicago. It concludes with biographical essays.