This is a code made up of symbols, each letter corrisponding with a different symbol. It looks like this:
Pigpen Cypher by Ultimatedvr from wikimediacommons.com. Public Domain
Pretty simple, right?
This is a nice code for when you need a code you can write down, and it is nice and quick to memorize. You don't need a lot of time, or a key-breaker to decode it, which is very nice. It is a simple code, but one that will confuse anyone who comes across it at first.
Practice it here!