Sutherland, Koltko-Rivera -- Cracking Codes and Cryptograms for Dummies -- 2009 pdf

Cracking Codes and Cryptograms For Dummies
Authors: Denise Sutherland, Mark Koltko-Rivera (Co-author)


Genres
Nonfiction
Reference
Mathematics

Description:
Cracking Codes & Cryptograms For Dummies provides an introduction to the use and function of codes and cryptograms in the world of secret societies and their connections to conspiracy theories, as well as over 300 different puzzles of varying skill levels from the simplest substitution puzzles to fiendishly difficult ciphers that test the readers' ability to find the hidden answer and meaning in the clues.
The types of puzzles offered will include:
with letter substitutions, number substitutions (A=1, B=2, etc.), and symbol substitutions (A=♦, B=☼, etc.),
o --rearranging the letters of a word or phrase to produce a new word or phrase.
o --where a message is set-off in two lines, alternating letters, then break into sets of letters
o --also Called Caesar ciphers where there is a shift of number of letters in the alphabet
o substitution cipher exchanging letters for symbols based on a grid.
o use a keyword to determine the order columns of letters are arranged in, according to the relative alphabetic position of the letters in the keyword, so KITE = 3241 (K is 3rd in alphabetical order within the word, I is 2nd, T is 4th, and E comes 1st), WRIGHT (= GHIRTW in alphabetical order) = 643125.
o by solving one cryptogram you get a keyword, which then allows you to crack the encryption on a different kind of puzzle.

Goodreads page:
https://www.goodreads.com/book/show/6852226-cracking-codes-and-cryptograms-for-dummies

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