"This poster by Pei-Ling Ou says a lot in a small yellow and black illustration. Freedom of speech is an essential human right, and yet so many people are stripped of it. It’s time for us to stand up and defend our right."
This is an excellent example of an ad because it uses a simple image but it is meaningful and recognizable to a large group of people. We could use basic graphics like this in mods to help show information.