A simple, elegant sample of pedagogy

Simple Example (click to enlarge the two pictures)

Here is a great, simple example of
Pedagogical Elements. Take two, almost identical pictures of Earth. The first is made up just of accurate simulation elements (if you ignore the corners). Click on it and see if you can make out the details. The second picture adds just a bit of pedagogy. Now click on it, and see how much richness a little pedagogy adds.