You have been searching for that special book and finally find it online! You purchase it over the Internet using your credit card. Is the transaction safe? Are you doomed? Follow through history, from Julius Caesar through the Middle Ages, and into World War II, as we trace the sometimes humorous history of secrecy and cryptography. We will finally come to the Internet and talk about the clever, modern cryptographic methods used to ensure safe, electronic transactions. This program is presented by Mr. Ed Salem of the OSHER Lifelong Learning Institute at R.I. T.