"Those who delight in puzzles can find much to ponder here." — Science News Letter
"Will be well received by anyone really interested in the subject." — Scientific Book Club Review
Readers interested in secret writing will find this book an excellent elementary explanation of transposition and substitution ciphers, codes, and their solutions. More than 150 problems provide practical application as well as tests of skill and ingenuity.
After a brief description of the history of secret writing, the reader is introduced to fundamental principles of ciphers — transposition and substitution — and given an understanding of the various methods of enciphering and deciphering secret messages. The author covers geometrical patterns, route transcription, columnar transposition, and other methods used in transposition; under substitution, he treats mixed cipher systems, single-alphabet and polyalphabetical substitution, mechanical devices, the Vigenère system, etc. A discussion of cryptanalysis leads the reader into 151 problems for which answers are provided at the end. Appendixes offer notes on enciphering Japanese; and explanation of the Baconian Biliteral Cipher; frequency tables for English, French, German, Italian, and Spanish.
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Seller: World of Books (was SecondSale), Montgomery, IL, U.S.A.
Condition: Very Good. Item in very good condition! Textbooks may not include supplemental items i.e. CDs, access codes etc. Seller Inventory # 00108820005
Seller: World of Books (was SecondSale), Montgomery, IL, U.S.A.
Condition: Acceptable. Item in acceptable condition! Textbooks may not include supplemental items i.e. CDs, access codes etc. Seller Inventory # 00104185704
Seller: BooksRun, Philadelphia, PA, U.S.A.
Paperback. Condition: Very Good. It's a well-cared-for item that has seen limited use. The item may show minor signs of wear. All the text is legible, with all pages included. It may have slight markings and/or highlighting. Seller Inventory # 048620247X-8-1
Seller: HPB-Emerald, Dallas, TX, U.S.A.
paperback. Condition: Very Good. Connecting readers with great books since 1972! Used books may not include companion materials, and may have some shelf wear or limited writing. We ship orders daily and Customer Service is our top priority! Seller Inventory # S_464571665
Seller: Once Upon A Time Books, Siloam Springs, AR, U.S.A.
paperback. Condition: Acceptable. This is a used book. It may contain highlighting/underlining and/or the book may show heavier signs of wear . It may also be ex-library or without dustjacket. This is a used book. It may contain highlighting/underlining and/or the book may show heavier signs of wear . It may also be ex-library or without dustjacket. Seller Inventory # mon0003306635
Seller: ThriftBooks-Dallas, Dallas, TX, U.S.A.
Paperback. Condition: Good. No Jacket. Pages can have notes/highlighting. Spine may show signs of wear. ~ ThriftBooks: Read More, Spend Less. Seller Inventory # G048620247XI3N00
Seller: ThriftBooks-Dallas, Dallas, TX, U.S.A.
Paperback. Condition: Very Good. No Jacket. May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less. Seller Inventory # G048620247XI4N00
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Seller: ThriftBooks-Atlanta, AUSTELL, GA, U.S.A.
Paperback. Condition: Very Good. No Jacket. May have limited writing in cover pages. Pages are unmarked. ~ ThriftBooks: Read More, Spend Less. Seller Inventory # G048620247XI4N00
Seller: Wonder Book, Frederick, MD, U.S.A.
Condition: Good. Good condition. A copy that has been read but remains intact. May contain markings such as bookplates, stamps, limited notes and highlighting, or a few light stains. Seller Inventory # F13A-03405