"Have a knack for mastering Morse code? Want to discover whether your crossword hobby might have seen your recruited into the history books? Think you could have contributed to the effort to crack the Nazis' infamous Enigma code? Then this book about Bletchley Park--the top-secr…
Contains over one hundred puzzles and problems to solve, ranging in difficulty from relatively simple to complex, and includes an answer key.
Examines cryptography, discussing the history of the science, different cipher types, and how codes and codebreaking have changed with computers.