When I read the Swallows and Amazons books as a kid, I loved the "this is what it looked like at night" illustration, which was a page colored solid black.
Years later, I finally found an excuse to use this classic image in a PowerPoint deck:
Would you believe this actually makes sense in the context of my upcoming PDC talk?
To find out how, you'll just have to watch it (live streaming from http://www.microsoftpdc.com)