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.
Les mer
Children love to learn secret codes and write encrypted messages and this book will teach them everything they need to know, including Semaphore and Morse code, "Grid code" used in the American Civil War, Egyptian hieroglyphics and traditional number replacement and alphabet switching codes.
Les mer
Produktdetaljer
ISBN
9781409584612
Publisert
2015-03-01
Utgiver
Vendor
Usborne Publishing Ltd
Vekt
190 gr
Høyde
64 mm
Bredde
131 mm
Dybde
11 mm
Aldersnivå
J, 02
Språk
Product language
Engelsk
Format
Product format
Heftet
Antall sider
112
Forfatter
Illustratør