Books with title Spy Codes and Ciphers

Can flashing lights send out a secret message? Did a famous spy use sketches of butterflies to hide messages? Can a digital photo hide a secret code? For centuries, spies have used many different ways to pass secret information. Codes and ciphers keep information safe from the enemy. Author Susan K. Mitchell uncovers the secrets to the amazing world of spy codes and ciphers.

Can flashing lights send out a secret message? Did a famous spy use sketches of butterflies to hide messages? Can a digital photo hide a secret code? For centuries, spies have used many different ways to pass secret information. Codes and ciphers keep information safe from the enemy. Author Susan K. Mitchell uncovers the secrets to the amazing world of spy codes and ciphers.

The enduring appeal of spies and their technology, codes and mysterious ways are explored in this engaging series of four colorful books. Each explores a different aspect of the spy trade, interspersing historical tidbits with tales of spies from popular culture and contemporary movies. Other titles in this series include: Secret Agents, Spy School, and Top Technology. Codes and Ciphers covers everything from Caesar's alphabetic substitution system and Morse code to the Enigma machines and microdots of World War II. Sidebars explain how to create a cipher, how to craft invisible ink messages using wax and crayons and how to make a one-time pad.

Learn about ciphers and codes--the tools used to keep a message secret. See how ciphers were used by the patriots in the American Revolutionary War. Find out how to make your own cipher. In this book, you will discover how flag signals and smoke signals work, see how computers use ciphers and codes today, find out how you can break a cipher without a key.

Secret Word Puzzle BookDo your kids love solving puzzles and earning fun rewards through learning?Want to send your children on a journey that’s both exciting and educational?Get ready for an incredibly fun and exciting learning adventure with our puzzle-solving book for kids! This Secret Word Puzzle Book is a puzzle-solving book that contains 23 unique and thrilling puzzles that helps teach your child necessary spelling as well as symbol coding, an essential skill that used for IQ testing in young children.With each puzzle your kids solve in our kids’ puzzle-solving book, they receive coordinates that lead them around our book’s map, guiding them towards the buried treasure. Every time they solve a puzzle, they’re not only getting one step closer to their prize, but they’re also training themselves on how to spell words correctly.Once your little one reaches the end of our kid’s puzzle book and puts all of their coordinates together, they’ll find their prize of a free e-book download. This e-book provides them with more thrilling learning opportunities just like this puzzle book for kids!Need more reasons to choose our Secret Word Puzzle Book! This treasure puzzle book is perfect for kids ages 4-9 to learn how to write and spell basic words and understand digit symbol coding The prize at the end of our puzzle-solving book for kids helps keep them engaged through all 23 puzzles The contents of our kids’ puzzle book are presented in full-colour, adding to the excitement Our kids’ puzzle-solving book makes a great birthday or back to school gift for young children Get your kids excited to learn with a real piece of treasure at the end with our Puzzle Book for Kids!

Secret Word Puzzle BookDo your kids love solving puzzles and earning fun rewards through learning?Want to send your children on a grand treasure hunt that’s both exciting and educational?Then avast ye mateys! It’s time to go a’ treasure hunting!Get ready to set sail for an incredibly fun and exciting learning adventure with our puzzle-solving book for kids! This Secret Word Puzzle Book is a puzzle-solving book that contains 25 unique and thrilling puzzles that helps teach your child necessary spelling as well as symbol coding, an essential skill that used for IQ testing in young children.With each puzzle your kids solve in our kids’ puzzle-solving book, they receive coordinates that lead them around our treasure puzzle book’s map, guiding them towards the buried treasure. Every time they solve a puzzle, they’re not only getting one step closer to their prize, but they’re also training themselves on how to spell words correctly.Once your little one reaches the end of our kid’s puzzle book and puts all of their coordinates together, they’ll find their prize of a free e-book download. This e-book provides them with more thrilling learning opportunities just like this puzzle book for kids!Need more reasons to choose our Secret Word Puzzle Book! This treasure puzzle book is perfect for kids ages 4-6 to learn how to write and spell basic words and understand digit symbol coding The prize at the end of our puzzle-solving book for kids helps keep them engaged through all 25 puzzles The contents of our kids’ puzzle book are presented in full-colour, adding to the excitement Our kids’ puzzle-solving book makes a great birthday or back to school gift for young children Get your kids excited to learn with a real piece of treasure at the end with our Puzzle Book for Kids!