Picture 1 of 1

Secret Code Book: Substitution Ciphers by John Redden (Paperback, 2018)

iHaveit (82400)

99.1% positive Feedback

Price:

£9.03

Free postage

Estimated delivery Wed, 30 Apr - Tue, 6 May

Returns:

30 days return. Buyer pays for return postage. If you use an eBay delivery label, it will be deducted from your refund amount.

Condition:

New

The Title is Secret Code Book: Substitution Ciphers. The item is a book paperback or softback. Content Language - English. Books are released in many editions and variations, such as standard edition, re-issue, not for sale, promotional, special edition, limited edition, and many other editions and versions.

About this product

Product Information

The Secret Code Book is a short introduction to substitution ciphers. The chapters ease young readers into the concept of rotation ciphers and work their way up to the Vigen re cipher. Along the way, readers will also learn about geometric approaches to secret codes such as the Pigpen cipher. As a bonus, there is a brief description of frequency analysis and how it is used to crack secret codes. frper gpbqr obbx In addition, this book actively challenges readers with practice missions where answers are listed in the back. Also, there is a cut-out rotation template that is provided to make your very own cipher disk! After reading this book, you will have all the basic tools needed to create secret messages.