Why should you read this book?
Dan Roam's "The Back of the Napkin" provides a great framework for visually presenting ideas - any idea, even if you can't draw. In fact, drawing isn't the point at all - its that the brain is hard wired to assimilate information through sight (or learning) pathways. The framework aligns questions like who, what, where and why with vehicles like portraits, charts, decision trees, and trends. To pick the right approach the SQVID is like a stereo equalizer to find the right approach.
So, the reptilian part of our brain 'gets it' faster than the 'thinking' part.