Get ready for the ultimate crash course in communicating and solving problems through simple pictures.

Thirty-two thousand years ago, your many-times-great-grandparents Oog and Aag drew pictures on the wall of a cave. They had an innate need to communicate, but no written language. So they found an easy and natural way to share their thoughts and stories.

Today, after so many years when speaking and writing dominated, we're back in another highly visual age. About 90 percent of everything sha...