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Codes, Ciphers and Secret Writing
Contributor(s): Gardner, Martin (Author)

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ISBN: 0486247619     ISBN-13: 9780486247618
Publisher: Dover Publications
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Binding Type: Paperback - See All Available Formats & Editions
Published: October 1984
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Temporarily out of stock - Will ship within 2 to 5 weeks

Annotation: Experiment with cryptography -- the science of secret writing. Cipher and decipher codes: transposition and polyalphabetical ciphers, famous codes, typewriter and telephone codes, codes that use playing cards, knots, and swizzle sticks...even invisible writing and sending messages through outer space. Hours of intrigue and challenge. 45 diagrams.


Click for more in this series: Dover Children's Activity Books
Additional Information
BISAC Categories:
- Reference | Questions & Answers
- Games & Activities | Puzzles
Dewey: 001.543
LCCN: 84008024
Age Level: 9-12
Grade Level: 4-7
Series: Dover Children's Activity Books
Physical Information: 0.27" H x 5.41" W x 8.45" L (0.31 lbs) 96 pages
Features: Bibliography, Price on Product
 
Descriptions, Reviews, Etc.
Publisher Description:
A fascinating, challenging book. ― A.L.A. Booklist
Learn to use the most important codes and methods of secret communication in use since ancient times. Cipher and decipher codes used by spies. Explore the famous codes that changed the fate of nations and political leaders. And enjoy hours of fun experimenting with cryptography ― the science of secret writing.
Beginning with simple letter substitutions and transposition ciphers, world-famous science writer Martin Gardner explains how to break complicated polyalphabetical ciphers and codes worked with grids, squares, triangles, and charts. You'll learn codes that are keyed to typewriters and telephone dials . . . even codes that use playing cards, knots, and swizzle sticks. Experiment with invisible writing ― inks that glow in black light and turn red under heat ― and explore the possibilities of sending messages through outer space to unknown worlds.
Using this book, you can solve the historically famous Playfair Cipher used by Australia in World War II, the Pigpen Cipher used by Confederate soldiers during the Civil War, Thomas Jefferson's Wheel Cipher, the Beaufort system used by the British Royal Navy, codes devised by authors for heroes in literature ― Sherlock Holmes, Captain Kidd, and the Shadow. And you will enjoy experimenting with bizarre methods of message sending ― the Dot Code, Knot Code, Swizzle Code, and more.
Young cryptanalysts, cipher fans, and puzzlists of all ages will find hours of intrigue and challenge in Codes, Ciphers and Secret Writing. A stimulating must for the intermediate cryptographer. ― The Kirkus Reviews
 
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