"A fascinating, challenging book." - A. L. A. Booklist. 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.
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Specifications
Book Details
Imprint
Dover Publications Inc.
Dimensions
Width
6 mm
Height
215 mm
Length
140 mm
Weight
125 gr
Ratings & Reviews
4.3
★
10 Ratings &
1 Reviews
5★
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3★
2★
1★
7
1
1
0
1
5
Great !!!!!!!!
Excelent packing, page qualities are great, binding is good. Took some little time to arrive due to high demand of this book. MOST IMPORTANT KNOWLEDGEABLE ...