Here are two good sources I found but glad to hear if anyone finds other better definitions. As the appetite for information increases, marketers have to find ways to demonstrate complex concepts concisely and visually in order to sell initiatives to either the public or senior management.
Good related article in the NY Times on how to do it:
Communication Nation Definition
1. It’s a visual explanation that helps you more easily understand, find or do something.
2. It’s visual, and when necessary, integrates words and pictures in a fluid, dynamic way.
3. It stands alone and is completely self-explanatory.
4. It reveals information that was formerly hidden or submerged.
5. It makes possible faster, more consistent understanding.
6. It’s universally understandable.
– Rick S.
