Over 50 Secret Codes

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 Morse code, the Grid code used in the American Civil War, Egyptian hieroglyphics, number replacement and alphabet switching codes and more. Each page features a different type of code, with an explanation of how it works and a practice code to crack. All answers are available at the back of the book.

Extent:112 pagesDimensions:64.3 x 131mmPaperback ISBN:9781409584612Key Stage:KS1, KS2Publication Date:March 2015