Codes, Ciphers, Steganography & Secret Messages

A thorough tome in a topic that is not so easy to get information about. Engrossing writing and describes how code breaking has changed the outcome of our history, a very good good, it deserves a re-read, it's chick full of good info for an historian interested in code breaking. I'd loan to a friend, but I like it too much to risk losing - buy your own!

Been looking for a book exactly like this, comes with the history of all codes, ciphers, steganography and secret messages, and how to use to them.

Loved the historical references. A basic primer.In a word : FYDFMMFOU

Very interesting - if a bit heavy on machine based analysis.didnt realise that there were so many codes in use, so long ago.