Recruited by the U.S. Army and Navy from small towns and elite colleges, more than ten thousand women served as codebreakers during World War II. While their brothers and boyfriends took up arms, these women moved to Washington and learned the meticulous work of code-breaking. Their efforts shortened the war, saved countless lives, and gave them access to careers previously denied to them.

Presents a guide to codemaking, codebreaking, and their role in history, describing different types of codes and ciphers, discussing codebreaking and concealment techniques, and including brief stories about exciting moments in the history of the art.

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

Tells the story of the cracking of the German naval code by the Allies during World War II, and discusses the significance of the breakthrough on the outcome of the war.

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...

Siblings Amy and Dan Cahill continue their global search for the clues that will unlock the Cahill family's secret power while also working to evade Irina Spasky.

A veteran World War II cryptographer provides the first comprehensive look at how codebreakers were "the decisive factor in the Allied victory. From the Battle of Britain to the bloody beaches of Normandy and the South Pacific. Haufler brings us the fascinating story of how the "secret war" changed the course of history.

In this title Kahn documents how one branch (intelligence) shaped the course of World War II. We learn how the Poles provided the French and the British with the ability to break the various German codes.

Amy and Dan are separated while trying to retrieve a clue which is guarded by thousands of soldiers and worry they cannot succeed apart.

Joining the elite Bletchley Park codebreaking team during World War II, three women from very different walks of life uncover a spy's dangerous agenda years later against the backdrop of the royal wedding of Elizabeth and Philip. 1940. As England prepares to fight the Nazis, three very different women answer the call to Bletchley Park, where the best minds in Britain train to break German military codes. Osla puts her fluent German to use as a translator...