David Scott Duncan shows how in his entertaining story of Tazza, a fictional chain of cafes with declining sales and leaders urgently seeking to understand why. The vivid characters of Tazza's market detective force come to their aha moment when they finally understand why their most loyal customers walked out the door--and how they can get them back.The core of the Tazza story is a simple, powerful idea that upends how most businesses view their customers. Customers have "jobs to be done." They "hire" companies to solve a problem or fulfill a need and "fire" them when unhappy. Duncan's fresh way of thinking about how to understand your customers' secret lives provides an innovative path for solving whatever market mysteries you face.