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.
Read More
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.
Read Less
Add this copy of Ciphers and Codes (Communicating) to cart. $4.37, very good condition, Sold by Wonder Book - Member ABAA/ILAB rated 5.0 out of 5 stars, ships from Frederick, MD, UNITED STATES, published 2003 by Heinemann Library.
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
Very Good. Very Good condition. A copy that may have a few cosmetic defects. May also contain light spine creasing or a few markings such as an owner's name, short gifter's inscription or light stamp. Bundled media such as CDs, DVDs, floppy disks or access codes may not be included.
Add this copy of Ciphers and Codes to cart. $5.64, very good condition, Sold by ThriftBooks-Dallas rated 5.0 out of 5 stars, ships from Dallas, TX, UNITED STATES, published 2003 by Heinemann Educational Books.
Add this copy of Ciphers and Codes (Communicating) to cart. $8.94, good condition, Sold by Dailey Ranch Books rated 4.0 out of 5 stars, ships from Tucson, AZ, UNITED STATES, published 2003 by Heinemann.
Choose your shipping method in Checkout. Costs may vary based on destination.
Seller's Description:
Good. USED Good Former Library book Hardcover. It has normal library markings including card holder/reference sticker and library call number on spine. Some cover scuff/indents on cover, folded or wrinkled pages. Has school and/or library name blacked out with marker or white blackout sticker on white page edges and inside.
Add this copy of Ciphers and Codes (Communicating) to cart. $30.63, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2002 by Heinemann/Raintree.
Add this copy of Ciphers and Codes (Communication) to cart. $33.93, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2003 by Heinemann/Raintree.
