Secret Codes

by Robert Jackson

This book contains all readers need to learn about cryptic communications and sending secret messages. Readers learn the history of cryptology, from Spartan codes to medieval invisible inks to the crucial role of the codebreakers in World War II. The set includes Morse code sender, decoder wheels, rune-like symbols, semaphore flags, and more. Color photos & illustrations.

32 pages, Paperback

First published January 1, 1902

About the author

Robert Jackson was born in 1941 in the North Yorkshire village of Melsonby. A former pilot and navigation instructor, his active involvement with aviation lasted many years. Following his retirement from the RAFVR in 1977 as a squadron leader, he became a full-time aviation writer and aerospace correspondent and lectured extensively on strategic issues. He speaks five languages, including Russian, and has written more than forty nonfiction works on military affairs. He is also the author of the popular Yeoman and SAS fiction series.