Discover the true stories of code breakers who worked behind the scenes during World War II. Men and women cracked enemy codes in order to gain information that helped the Allies win the war.

This intriguing and revelatory history of cryptology ranges from the early days of code-making and code-breaking in ancient Egypt, Sparta, and Rome to the present day when it has slipped beyond the tight control of governments and now affects all our lives whenever we use our cell phones or connect to the internet. Subjects covered here include Mary Queen of Scots' cryptic messages when she was plotting against her cousin Elizabeth I; the codes used by George Washington for military and political purposes; and code-breaking during World Wars I and II, including the Enigma Machine. Those who invent codes and those who break them are fascinating characters. This is their story.

How do we know about the men and women who broke important World War II military and diplomatic codes? What were the challenges, and what happened to them? This book shows how we know about the Allied codebreakers and their experiences from primary and other sources. It includes information on some historical detective work that has taken place, using documentary, archaeological, and oral evidence, that has enabled historians to piece together the fascinating story of those who provided top secret information known as Ultra and Magic.

Have you ever wished that you could do something heroic to help your country? When Alan Turing was a boy, he was fascinated by math and science. Later, Turing's math skills would help Great Britain win World War II. Turing's parents and teachers thought he'd be better off dropping math in favor of more gentlemanly studies, such as literature and Latin. But he stuck with it, and by the start of World War II in 1939, he was ready to take on the biggest challenge his country faced: Nazi Germany. Turing put his advanced knowledge of math to work decoding secret German messages. His ideas not only helped Great Britain turn the tide of the war—they provided the foundation upon which much of modern computing and artificial intelligence is based.

Enter the emotional, suspenseful Regency world of USA Today bestselling author Jacki Delecki’s Code Breakers spy series. Undaunted by danger or scandal, these intrepid lords and ladies discover true love as they risk it all to save England from Napoleon’s treacherous designs. Two Unattainable Missions Joie and Reggie are back. And while it’s no secret they are in love, convincing her father that the titleless Reggie will be a good husband is a failed mission–at least so far. However, they won’t give up. Joie must return to London for her first season, pretending to accept her fate, that her father has picked an eligible man for Joie to wed. Help will come in the form of Lady Henrietta, who has personally assumed the task of sponsoring Joie to stifle any scandal and to help make the match with Reggie work. And only one is on assignment from the Crown. Reggie is in London, tasked with finding the mole inside the head code breaker’s household. Joie immediately tries to help Reggie with his assignment by befriending Lady Henrietta’s uncle who is a codebreaker–and fraternizing with the servants in effort to find the spy, despite Reggie telling her not to interfere this time. But when Joie discovers how the mole is sending the messages to France, the enemy must retaliate. But this time, she’s not the target. She’s jeopardized someone else. Who will live and who will die? And will Reggie and Joie ever be able to wed? THE CODE BREAKERS SERIES Men and women from the class of privilege and rank risk their lives to defend England against the treacherous designs of Napoleon. They confront disaster, scandal, and passion as they pursue their code of honor and love. Read the entire series or enjoy as standalone reads in this best-selling Regency romantic fiction series from USA Today bestselling author Jacki Delecki. A Code of Love A Christmas Code A Code of the Heart A Cantata of Love A Wedding Code A Code of Honor A Holiday Code for Love A Code of Wonder A May Day Code for Love A Code of Joy A Secret Code

Say goodbye to boredom forever with The Super Duper Puzzle Book, featuring hundreds of wacky and fun games, puzzles, and riddles for kids 10 and older. Make boredom a thing of the past with The Super Duper Puzzle Book, the ultimate wacky activity book for kids 10 and older. With hundreds of number challenges, riddles to solve, limericks to finish, doodles to draw, word problems, memory games, backward crossword puzzles, Sudoku, and more this wacky activity book guarantees that brains are going to get a workout. With The Super Duper Puzzle Book, kids won’t realize they’re actually learning things –they’ll be too busy laughing and having a good time!

Alan Turing has long proved a subject of fascination, but following the centenary of his birth in 2012, the code-breaker, computer pioneer, mathematician (and much more) has become even more celebrated with much media coverage, and several meetings, conferences and books raising public awareness of Turing's life and work. This volume will bring together contributions from some of the leading experts on Alan Turing to create a comprehensive guide to Turing that will serve as a useful resource for researchers in the area as well as the increasingly interested general reader. The book will cover aspects of Turing's life and the wide range of his intellectual activities, including mathematics, code-breaking, computer science, logic, artificial intelligence and mathematical biology, as well as his subsequent influence.