cryptography

"Communicate in a language only you and your friends can understand! Expert language creator David J. Peterson (inventor of languages for Game of Thrones, the Marvel Universe, and more) guides you as you create your own secret languages, codes, ciphers, and hidden messages. From simple cyphers to entirely new alphabets, master the skills of secret communication, whether it's written, drawn, or spoken"--Provided by publisher.

Chronicles the life of Elizebeth Friedman, who played a role in our nation's history for forty years. She used her cryptography skills to hunt Nazi spies, steal enemy secrets during both world wars, and helped to shape the history of code-breaking.

"Describes the creation of the top secret Navajo code during World War II and its use in several major battles of the war"--Provided by the publisher.

By following the instructions in the coded message, Tim finds his birthday present.

Readers learn how new technology exploded and resulted in developments in cryptography and surveillance as both sides raced to crack the codes and win the war.

A book for high school students about the code breaking and espionage done during the Vietnam War.

Describes the use of codes and code breaking from ancient times to the present.

Discusses the difference between codes and ciphers, examines common codes and ciphers that have been used during wars, and explains how to create simple ciphers.

"The Queen needs Mac to crack the code and save the Video Game World Championships"--Back cover.

Students will learn about the puzzles and codes that make up the biggest and least-understood agency in the American intelligence community.