It's my Bible my friend!I have been trying to find a way to upload it on here to share it with the masses but no joy so far. I did write a small piece on Book Ciphers based on Singh's writings, it's a very important part of our general education :-DV.Quote from: Banjo on May 16, 2012, 08:32 pmQuoteAn excellent re working of the classic Caesar Shift cipherHave you read, "The Code Book" by Simon Singh? If not, I think you'd enjoy it, based on some of your other posts