Fascinating | easy-to-understand book for would-be cryptanalysts of all ages teaches how to invent and decipher a host of codes and secret messages | including the Moving Ahead cipher used by Julius Caesar; dots and pinpricks | as used by the secret Rosicrucian society; and even a system used by Sherlock Holmes. 14 black-and-white illustrations.
Piracy-free
Assured Quality
Secure Transactions
*COD & Shipping Charges may apply on certain items.