Here are some codes I'd like to share with you. It's beneficial for those who like mysteries.... yeah.

Cryptography

For those who want to learn codes and ciphers.

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

Compilation of codes, ciphers & some abbreviations to shorten the message before encrypting them. Learn the easiest way to remember Morse Code too.

This is all about Codes and Ciphers.

A book of guide in Codes and Ciphers.

Different codes and ciphers, credits to where I've got those- probably from Google or people I know.

Compilation of codes and ciphers

When Malcolm Rivera takes his vandalism a step too far, he finds himself expelled and shipped off a long way from home. That's right: boarding school. It's a teenager's worst nightmare. But a nightmare is truly what Malcolm has found himself thrown into, and it certainly isn't the type of boarding school that Malcolm expected to be sent to. This is a school where creatures of the night stalk the halls during the day, and it's never safe to get in the water. No, this isn't like any boarding school Malcolm has ever heard of. This isn't any boarding school you've ever heard of...