Table of Contents for Destroy After Reading : The World of Secret Codes


What's So Special About Secret Codes?
4(2)
Early Codes
6(4)
Code Symbols and Cracking Codes
10(4)
Code School and the Enigma Machine
14(4)
Coding Languages
18(6)
Codes of Today and Tomorrow
24(6)
Glossary 30(1)
Find Out More 31(1)
Index 32