This edition surveys the entire history of codes through an eloquent narrative and an evocative range of illustrations, paying special attention to famous codes that have never been broken, such as the Beale Ciphers, the Voynich manuscript, the Easter Island code, and many more.
Edgar Allan Poe's Contributions to Alexander's Weekly Messenger
A brief look at various codes used through history to send and receive secret messages.
Provides instructions for using codes to send secret messages, and hints for keeping your enemy stumped. Includes a story written in code. Suggested level: primary, intermediate.
Provides the history behind codes and ciphers as used in spying, other types of secrets that can be thought of as codes, and explains how readers can make and use their own secret codes.
"Have you ever sent a secret message? Do you know how to read Morse code? Find out about the secrets of code breaking in this top secret book!" (publisher).
Each page is a different puzzle which may be visual, written, or various symbol interpretations which chanllenge the beginner to expert cryptologist.
The titles in this series of puzzle books aim to keep children amused for hours. Each book contains a range of different puzzles including spot-the-difference, anagrams, crosswords and more.
Mae Rhif 4 yng nghyfres Pen i Waered yn delio a chyfrinachau o bob math.
本书旨在探索美学密码以及密码的形成和发展过程.内容包括密码的出现,毕达哥拉斯密码,圣殿骑士团,维特鲁威人传奇,同音字替换法与维吉尼亚加密法,向密码世界过渡等.
When possible, the book details methods for breaking both classical and modern methods. The new edition expands upon the material from the first edition which was oriented for students in non-technical fields.