This document provides an outline and introduction for a chapter on differentiation advantage. It discusses how differentiation is a key to competitive advantage and involves creating something unique that customers value beyond just low price. Differentiation opportunities depend on the characteristics of the product or service. The chapter will analyze differentiation from both the demand side, understanding what customers want, and the supply side, a firm's ability to create uniqueness. The goals are to understand differentiation, recognize its forms, and develop strategies that link a firm's capabilities to customer demand for differentiation.