ciphers

Post rider John Raleigh Gates sets out on the ride of his life to find a treasure that could help the Patriots in their struggle against Britain.

In 1612, English brothers Samuel and William Gates seek to turn their family's bad fortune around in the Americas and, after receiving a cryptic message from a stranger during the voyage across the Atlantic, begin searching for a hidden treasure linked to the lost colony of Roanoke.

Describes the history, methods, and types of codes, ciphers, and other ways of communicating privately.

Explains in simple terms how to encode and decode messages in various ciphers, describes coding machines, and gives formulas for invisible ink.

Describes the many ways of hiding the real meaning of what someone is trying to say by using a code or replacing the message with a cipher.

Three friends form a codebreaking service and meet a motley cast of characters including a Bulgarian spy, a man from the State Department, and a little old lady who wants her diary encoded.

Jason and the new friends he and his sister have made during their summer in Newport, Rhode Island, try to figure out the coded messages he has been getting from a mysterious stranger.

An alphabetical exploration of the world of codes and ciphers and significant individuals involved in that field.

Presents various methods of writing, speaking, and signaling secret messages.