Secret Messages: A Collection Of Puzzles Using Codes And Ciphers,Used Hogrefe & Huber Publishing I Could Do Anything If

I Could Do Anything If I Only Knew What It Was And Wishcraft

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Secret Messages: A Collection Of Puzzles Using Codes And Ciphers,Used Hogrefe & Huber Publishing I Could Do Anything IfThis Book Is A Lighthearted Dash Through The History Of Cryptology With Plenty Of Amusing Messages, Jokes And Riddles To Encipher And Decipher. With The End Of The Cold War And Increasing European Unity There Is No Need To Treat Cryptography As A Subject Only Appropriate To Stories Of Espionage And Warfare. Many Children From About 8 Or 9 Find Learning About Ciphers As Interesting As Learning Chess Or Tackling Good Brain Teaser. If They Like