The document provides an overview of using the Business Model Canvas tool for developing a business venture. It includes templates of the Business Model Canvas with explanations of the different sections. The Canvas is presented as a tool to help structure customer development, map customer segments to value propositions, and think through key aspects of a business like partnerships, activities, resources and costs. The document emphasizes an iterative process of testing assumptions using the Canvas as the focal point. Copyright information is provided at the end of most pages.