"Discusses different methods for breaking secret codes"--Provided by publisher.

In 1916, at the height of World War I, brilliant Shakespeare expert Elizebeth Smith went to work for an eccentric tycoon on his estate outside Chicago. The tycoon had close ties to the U.S. government, and he soon asked Elizebeth to apply her language skills to an exciting new venture: code-breaking. There she met the man who would become her husband, groundbreaking cryptologist William Friedman. Though she and Friedman are in many ways the "Adam...

Send messages written in invisible ink, invent and read secret codes, construct hiding places for important items, and much more.

A dual-timeline historical novel of codebreaking, secrets, murder, and romance, set in Hawaii in 1943 and 1965, follows two women--a cryptanalyist working to defeat the Japanese Army, and a rookie journalist investigating the disappearance of a high-profile guest during the grand opening of the Mauna Kea Beach Hotel.

Documents the contributions of more than ten thousand American women who served as codebreakers during World War II, detailing how their efforts shortened the war, saved countless lives, and enabled their subsequent careers.

"Hailey Gordon is looking to make some fast cash to help pay her tuition when she's caught counting cards at the Encore casino in Boston. She grabs her winnings and makes her escape. With guards closing in, she dives into an unlocked room to hide...only to find a dead body. Recently released from prison, Nick Patterson hasn't felt hope in a long time, but the job he "inherited" in prison promises to change that. He enters hotel room 633 to find that...

Your mission, find Victor Dowd's missing sketchbook, and discover one of the most unusual stories of World War II. Meet the 603rd Camouflage Engineers, better known as the Ghost Army. This group of artists and sound engineers were trained to deceive the Germans in World War II with everything from fake tanks to loudspeakers broadcasting the sound of marching troops. And meet Victor Dowd, a real-life sergeant who with his fellow Ghost Army troops fought...

It tells the fascinating story of Elizebeth Smith Friedman, the groundbreaking cryptanalyst whose painstaking work decoding thousands of messages for the U.S. government would send infamous gangsters to prison and bring down a massive, near-invisible Nazi spy ring in WWII. A suburban wife and mother who led a secret double life, her remarkable contributions to the science of cryptology would only come to light decades after her death when classified...