How do make deductions like Sherlock Holmes does!! ~I do not own any of these, credit to whoever came up with them~

✘ - - - DECIPHER is a book compilation that tackles different, new and old codes/ciphers. In addition, this book begins with the definition of cryptography along with it's different terminology for begginers, and better understanding. Interested? Want to learn? Then you've come to the right book. Explore the pages and read to learn. Enjoy! Disclaimer: This is a Tagalog-English compilation.

Her compilation of codes and ciphers Highest rank #1 in Codes

A list of many alphabetical and numerical codes and tricks for being a spy.