cryptography

"In this picture book biography, young readers will learn all about Elizebeth Friedman (1892-1980), a brilliant American code breaker who smashed Nazi spy rings, took down gangsters, and created the CIA's first cryptology unit. Her story came to light when her secret papers were finally declassified in 2015. From thwarting notorious rumrunners with only paper and pencil to 'counter-spying into the minds and activities of' Nazis, Elizebeth held a pivotal role in the early days of US cryptology. No code was too challenging for her to crack, and Elizebeth's work undoubtedly saved thousands of lives. Extensive back matter includes explanations of codes and ciphers, further information on cryptology, a bibliography, a timeline of Elizebeth's life, plus secret messages for young readers to decode"--From the publisher's web site.

"Explore how technology and tactics not only shaped the Vietnam War, but changed the ethics of American surveillance from then until the present day"--Amazon.

"A teenage boy obsessed with crop circles and cryptography finds his boring life turned upside-down when he discovers that all of his conspiracy theories are true, sending him on the ultimate treasure hunt for an ancient secret spanning thousands of years. What is the connection between a lost mountaineer, an indecipherable manuscript, and the lost library of Alexandria? How is this connected to a one-eyed, flatulent Welsh Corgi and endless plates of corned beef sandwiches?"--Back cover.

"A nonfiction chronicle of the courageous efforts of remarkable young women recruited by the US government to crack German and Japanese military codes during World War II."--Provided by publisher.

"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.