Harvard professor of symbology Robert Langdon awakens in a hospital in the middle of the night. Disoriented and suffering from a head wound, he recalls nothing of the last thirty-six hours, including how he got there, or the origin of the macabre object that his doctors discover hidden in his belongings. Langdon's world soon erupts into chaos, and he finds himself on the run in Florence with a stoic young woman, Sienna Brooks, whose clever manuevering...

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 mysterious country estate Bletchley Park, where the best minds in Britain train to break German military codes. Vivacious debutante...

When the NSA invincible code-breaking machine encounters a code it connot break, the agency calls in head cryptographer, Susan Fletcher. What she uncovers sends shock waves through the corridors of power. Caught in a tempest of secrecy and lies, Fletcher battles for her country, her life and the life of the man she loves.

When Robert Langdon wakes up in an Italian hospital with amnesia, he teams up with Sienna Brooks, a doctor he hopes will help him recover his memories. Together, they race across Europe and against the clock to stop a madman from unleashing a global virus that would wipe out half of the world's population.

Spring 1942. The United States is reeling from the blow the Japanese inflicted at Pearl Harbor. But the Americans are determined to turn the tide. The key comes from Commander Joe Rochefort, a little known “code breaker” who cracks the Japanese military encryption. With Rochefort’s astonishing discovery, Admiral Chester Nimitz will know precisely what the Japanese are planning. But the battle to counter those plans must still be fought. From...

"A nonfiction manuscript for young readers about a group of Allied spies and codebreakers that cracked the Nazis's infamous cypher, allowing them to read secret military messages and turn the tide of World War II. During WWII, as the Germans waged war, every Nazi plan, every attack, was sent over radio. But to the Allies listening in, the messages sounded like gibberish. The communications were encoded with a powerful cypher-unless you could unlock...

Provides information about the historical code makers and breakers who protected their countries by coding and decoding messages for their governments, and the modern cryptologists who keep emails, texts, and online purchases secure.

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...

"When agoraphobic genius Salem Wiley lands her dream job as an FBI cryptanalyst, she vows never to return to the witch hunt underworld, where ancient secrets encrypted by hunted women have the power to rewrite history. Her resolve disappears when sweet Mercy Mayfair, the child she is pledged to protect, is kidnapped. With the help of the enigmatic Agent Lucan Stone, Salem is forced to code hunt in Ireland, England, and Scotland to keep the girl alive....

"In the global race for space domination, a cryptologist must overcome his greatest mistake to help the granddaughter of a nuclear physicist decipher the clues to a top secret nuclear project before it falls into the hands of America's enemies"--