"I’m going to make a long speech because I’ve not had the time to prepare a short one" goes the famous saying of Churchill.
The same applies to charts, graphs and visuals. I don't know about you, but in my time I've seen way too many graphics (usually embedded in scintillating corporate Powerpoint presentations) that reflect half-formed thinking.
At the other end of the spectum is this wonderful visual by James Dutton.
Many marketing folk are trying hard to figure out how to measure the elusive 'customer engagement' metric. James moves the discussion along with insight and elegance.