Writing Secret Codes And Sending Hidden Messages

Explains how to use secret codes, including Morse, Caesar's, Sandwich, Rosicrucian, and others, as well as how to send hidden messages using invisible ink, how to take fingerprints, and other tricks and techniques.

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

Dozens of codes and hidden messages are presented as riddles, poems and other fun-filled expressions.

Protect your diary from snooping siblings. Share your secrets with a BFF. Guard your texts from unwanted eyes. Create the lingua franca for your own fantastical secret world! Expert language creator David J. Peterson (inventor of languages for Game of Thrones, the Marvel Universe, and more) guides you as you create own secret languages, codes, ciphers, and hidden messages. From simple cyphers to entirely new alphabets, Create Your Own Secret Language will help you master the skills of secret communication, whether it’s written, drawn, or spoken. By the time your finished reading, you’ll be able to share messages memora vosak laz vos otihoe vosecchi! (“that no one will be able to understand!") Illustrations by Ryan Goldsberry

History?s amazing secrets and codes?and how to crack them yourself. This fascinating look at history?s most mysterious messages is packed with puzzles to decode and ciphers that kids can use themselves. Here are the encrypted notes of Spartan warriors, the brilliant code-crackers of Elizabeth I, secret messages of the American Revolution, spy books of the Civil War, the famous Enigma Machine, and the Navajo code talkers. As computers change the way we communicate, codes today are more intriguing than ever. From invisible ink to the CIA, this exciting trip through history is a hands-on, interactive experience? so get cracking!

This illustrated encyclopedia surveys the history and development of code-making and code-breaking in all areas of culture and society from hieroglyphs and runes to DNA, the Zodiac Killer, graffiti, and beyond.

Toy Story meets James Bond in this incredibly action-packed new series. Spy Toys are going to take the world by storm! The world's leading toy manufacturer makes playthings for the rich and famous, and every toy they create contains a tiny computerised brain and a unique personality. These toys are seriously awesome! But every so often there's a faulty toy ... Dan is a Snugaliffic Cuddlestar bear – he should be perfect for hugging. But because of a faulty chip, Dan is so strong he could crush a car! Thrown on to the rejects pile, he meets Arabella, a Loadsasmiles Sunshine Doll, who has a very short temper and is absolutely NOT good with children. Soon Dan, Arabella and Flax (a custom-made police robot rabbit gone AWOL) are recruited by the mysterious Auntie Roz, and together they make up THE SPY TOYS. Their first mission: to protect the prime minister's son from being kidnapped ...! Featuring hilarious, action-packed illustrations by Tim Wesson throughout, this series is perfect for fans of Pam Butchart and David Solomons' My Brother is a Superhero.

Tells the stories of ninety-five situations in which code and hidden messages have been used throughout history.