       | £9.95 Secret Codebreaker 3 By R Reynard CD included. Code programs and 25 Real Secret Messages to crack. Also a Revolutionary War Dictionary Code and many more code examples to crack.  Temporarily out of stock
£6.99 Secret Communications By H Beckhough The hidden history of codebreaking...from earlier centuries, to Bletchley Park and the Cold War. Illuminates the twilight world of intelligence and secret communications throughout history. Temporarily out of stock
£4.50 Secret Messages By Jeff Hawtin A collection of puzzles using codes and ciphers Temporarily out of stock
£9.99 The Code Book By Simon Singh The secret history of codes and code-breaking. Combines impeccable history and intriging stories of espionage; Brings to life the secret world of cryptographers and code-breakers from ancient... Temporarily out of stock
£8.99 The Man Who Knew Too Much By David Leavitt To solve one of the greatest mathematical problems of his day, Alan Turing proposed an imaginary programmable calculating machine. But the idea of producing a ‘thinking machine’ did not... Temporarily out of stock
£20.00 The Puppet Masters By John Hughes-Wilson This book focuses on spies, traitors and the real forces behind world events; from Caesar and Gengis Khan to the modern mechanics of telecommunications of radio, telephone and email. Colonel... Temporarily out of stock
£7.99 The Ultra Secret By F W Winterbotham This was the first book to reveal WW2's best kept secret. Temporarily out of stock
£13.50 They Listened In Secret By Gwendoline Page A collation of Wrens' memories of working at Bletchley Park. Edited by Gwendoline Page.  £6.50 Top Secret Ultra By P Calvocoressi Written by Peter Calvocoressi, a former worker at Bletchley Park for much of the war. He worked in Hut 3 in a team whose task was to translate and decrpt German Amy and Air Force signals. |
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