Intelligent persons have written wonderful books about creating good graphs. Today, I received two graphs in my Google Reader, and they make such powerful/funny statements that I had to show them, especially since they are visually so comparable.
In the funny category:
In the powerful category (click here for the original article with more powerful visuals):
It's very unlikely that anything in my research career will produce anything that funny, or could influence the voting behaviour of a whole nation, but we can only try.