Did you ever want to send a message that only your friend can read? Or did you want to try and uncover a secret communication from someone else? If so, then here's everything you need to know about creating and cracking codes-from the simplest substitution messages to the secrets of the well-known World War II coding contraption, the amazing Enigma Machine!The book includes information codesScrambling codesCodes containing unrecognizable symbolsOther message systems such as Morse code and flagsAnd how to make your own Enigma machine!You’ll be thrilled as this amusing book takes you on a codebreaking adventure, learning ways to decode both simple and difficult puzzles, as well as provides you with a history on the cryptology. Filled with tips and enjoyable illustrations by Ian Baker, Codes will have you sending secret messages in no time.
Kjartan Poskitt is an author and TV presenter who is best known for writing the Murderous Maths children's series of books. Poskitt was educated at Collingwood College, Durham. In addition to his popular science and maths books, which include books on Isaac Newton (Dead Famous: Isaac Newton and his Apple), puzzles, practical jokes and secred codes, Poskitt has written a book of magical tricks, a GCSE Maths support book and four Rosie and Jim annuals. In 2007, Poskit published the first in a new series of children's novels called Urgum the Axeman.
He also wrote the theme tune for the children's art program SMart, as well as the title theme and music for the first two series of Brum. He is also the creator of a logic puzzle, Kjarposko.
He has been a presenter for a number of (mostly BBC) educational children's TV shows.