This document introduces service design as planning and organizing people, infrastructure, communication, and material aspects of a service to improve quality and interactions between providers and customers. It discusses key ingredients like user touchpoints and systems that services depend on. The document outlines a common service design method including research phases to discover needs and opportunities, define the problem, develop solutions, and deliver the final service. It notes that true service design for existing customers can be disruptive and requires commitment over the long term. Examples of where to find service design opportunities include everyday life and consumer issues.