Blah Blah Blah: What to do when words don’t work is by Dan Roam, the author of The Back of the Napkin. It describes how to combine the visual and verbal sides of your mind to think and communicate more clearly.
Roam says that half of what we believe about thinking is wrong. Complexity, he says, kills our ability to think. Misunderstanding kills our ability to lead. Boredom kills our ability to care.
Laid out in three parts, the book describes the blah-blah-blah problem, introduces a solution (vivid thinking), and presents a map to get from where we are to where we need to be.