Over 50 Secret Codes

Preço de venda €13,87 Preço normal €17,06
2 em estoque

Entrega rápida

112 psl.

2015 m.

Minkštas viršelis

Código de barras: 9781409584612
Descrição

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.