Book of Donmon Teith

A brief look at various codes used through history to send and receive secret messages.

Code-cracking skills can be put to the test in this entertaining book which teaches children how to write and decode secret messages. Includes Semaphore and Mor

Break secret codes and decipher vital messages in this mini book of puzzles. From collecting launch codes to reading spy watches, it's packed with activities th

This is one in a series of KnowHow activity books aimed at children between the ages of seven and twelve. Other books in the series offer ideas on experiments,