"This book is a continuation of The history of codes and ciphers in the United States prior to World War I ... and is essentially volume 2 of Historical background of the Signal Security Agency, ...

Not being a huge fan of secret codes and cryptography, I did not open “Can You Crack the Code? A Fascinating History of Ciphers and Cryptography,” by Ella Schwartz, (illustrated by Lily Williams), for ...

We can now learn more about one of the most controversial monarchs in European history, thanks to a trio of amateur cryptologists who unknowingly stumbled upon a treasure trove of long-lost letters by ...