Ciphers and Codes

by Karen Price Hossell

Book Overview

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.

• Format: Hardcover
• Language: English
• ISBN: 1588104842
• ISBN13: 9781588104847
• Release Date: May 2003
• Publisher: Heinemann Educational Books
• Length: 48 Pages
• Weight: 0.70 lbs.
• Dimensions: 0.4" x 7.9" x 10.8"
• Age Range: 8 to 10 years
• Grade Range: Grades 3 to 5

Customer Reviews

Nice introduction to ciphers and codes & interesting, too.

"A person who is interested in this kind of job [cryptology] should study mathematics and computer science. It's never too early to start preparing for your future!" (p.27) Very interesting look at the history and current state of cryptolgy. Includes lots of interesting facts and brief biographies of famous cryptologists and the people they served. Includes the Navajo Code Talkers, the Enigma, and quilt messages. The end of the book as activities like making invisible ink and messages to decifer. Extensive glosssary and index and a six item bibliography. Karen Woodworth-Roman, Children's Science Book Review