For now, though, the Business Model Canvas is simple enough to sketch on a whiteboard — and powerful enough to refocus the way you view your business.

The Business Model Canvas provides a simple, one-page draft of a business ... business and what they return to you in profits. For example, what does it cost you to acquire a new customer?

It has three parts: a business ... a simple overview of how to conduct customer discovery and customer validation in combination with the Business Model and Value Proposition Canvas.