Napkin Sketch
A napkin sketch is the simple drawing of one single idea, explaining what the idea is about without going into details how it works.
A napkin sketch is the simple drawing of one single idea, explaining what the idea is about without going into details how it works. A napkin cheap is the cheapest and easiest way to visualize your idea and thereby make it more tangible. It should be possible to pitch the idea on a napkin sketch in under 30 seconds.This tool is especially helpful for early brainstorming of ideas. The concept is explained in the Value Proposition Design book by Strategyzer.