The cover of 'Who Broke the Wartime Codes' by Nicola Barber. The cover is headed with the phrase 'Primary Source Detectives', under which is the title of the book. Below this is a black-and-white photograph of a woman in WRNS uniform with her back to us, looking at a codebreaking machine from 1940s Bletchley Park.

Who Broke the Wartime Codes?

Tom BriggsPortfolioLeave a comment

I consulted on Who Broke the Wartime Codes (2015, Nicola Barber, Raintree)

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