Owning Game-Changing Subcategories outlines the path to finding, managing, and leveraging new subcategories. In the digital age, the path has been made wider, shorter, and more frequently traveled. Throughout Owning Game-Changing Subcategories, David Aaker discusses certain aspects of the digital age that alter this path, such as E-commerce providing fast, inexpensive market access bypassing the cost of gaining distribution into storefront retailers or creating personal sales teams and social media and websites enabling communication on steroids in comparison with traditional use of advertising or events.

Growth is not only a success measure but also creates energy and opportunity for customers and employees. And such growth almost never occurs with "my brand is better than your brand" marketing. Owning Game-Changing Subcategories explores the only ways to grow a business (with rare exceptions) which is to: