It’s been a long time since I’ve seen this much eloquence in both words and pictures. It’s a great illustration of how a good picture is worth a thousand words, and then again, maybe also why it isn’t always.

That’s Correlation or Causation? on BusinessWeek.com. The words:

Need to prove something you already believe? All you need are two graphs and a leading question.

That’s concise verbal eloquence. Look at these two example pictures included (and click on the images here for four more examples, on the source at BusinessWeek.com)