The Usborne Book of Secret Codes


Book Description

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




Over 50 Secret Codes


Book Description

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.




Mini Books: Spy Secret Messages


Book Description

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 that will keep budding secret agents busy on journeys or whilst out and about.




Knowhow Book of Spycraft


Book Description

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, paper fun, detection, jokes & tricks, and action toys.




Secret Code Menace


Book Description

A thoughtful and provocative fiction story about the science of secret codes and error correction. Sara, Derek and Jared have devised their own simple code to communicate with each other in class at school. When a written, coded message is amended en route to Sara and she gets into trouble, they start to explore how their simple code could use error correction to protect themselves against tampering by somebody.This is all a private hobby, until one day, on a school trip to a bank the class is caught up in an attempted bank robbery. Suddenly Sara, Derek and Jared's playing with codes - and with methods of error correction - has an urgent reality. The Secret Code Menace is part of the Cold Fusion series, published by Ransom Publishing, a specialist children's publisher. The series is designed for more able readers, gifted and talented children, and those who are curious, enjoy a challenge and like thinking outside the box. The Secret Code Menace is ideal for more able readers aged 9 - 12 with a reading age of 12 + .




Worldwide Secret Code Puzzles for Kids


Book Description

Dozens of intriguing puzzles pose and answer interesting questions based on world history, geography, popular culture, and many other subjects. Alphabet and number codes, picture puzzles, and more, suitable for ages 8–11. Solutions.




Spy Disguises


Book Description




Codes, Ciphers and Secret Writing


Book Description

Explains various methods used in cryptography and presents examples to help readers in breaking secret codes




Secret Codes


Book Description




Official Spy's Handbook


Book Description

Everything a good spy needs to know about secret codes, spy rings, dead drops, disguises, tracking, shadowing, hiding, sending messages, decoding signals, observation skills ... all at a glance.