The Back of the Napkin (Expanded Edition): Solving Problems and Selling Ideas with Pictures

What do people need to understand? What are the edges of the map or diagram? What are you not mapping or diagramming? Where will other people see this map or diagram (e.g., on a wall, in a presentation, on paper)?

In a larger sense, Leonardo’s maps are another example of one of his greatest, though underappreciated, innovations: devising new methods for the visual display of information. In his illustrations for Pacioli’s book on geometry, Leonardo was able to show models of a variety of polyhedrons that were perfectly shaded to look three-dimensional. In hi

4. Visual: The fourth mindset encourages us to step beyond the comfort of spoken and written language and to tap into our immense power as spatial thinkers.