The Codebreaker's Handbook

(, Main)

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Description

Writing and breaking codes is an essential skill for any secret agent and great fun for everyone else. Expert Herbie Brennan's guide tells you everything a cryptographer or code-buster needs to know: how to crack codes, tools to hide messages - from invisible ink to computer pixels, how to develop complex ciphers, exciting code-busting events from the Kama Sutra to the Enigma machine and computer ciphers, and allows you to test your skills with code examples and tests.

Author Bio

Herbie Brennan began a journalistic career at age eighteen and at twenty-four became the youngest newspaper editor in his native Ireland. He is now a full-time writer of fact and fiction for both adults and children, with several international bestsellers to his name. Combined sales of his books have passed seven million copies, and his work has appeared in more than fifty countries. He lives with his wife and eight cats in an old rectory in Ireland.