This document provides an overview of services marketing. It begins by defining what services are and discusses the key service sectors. It then explains why services marketing is important given the growth of the service economy. The document outlines some of the key characteristics of services compared to goods, such as intangibility, inconsistency, perishability, and the simultaneous production and consumption of services. It also discusses the four factors known as the "4 Is" that distinguish services - intangibility, inconsistency, inventory, and inseparability. The document provides examples of different service industries and purchases. It examines the size and growth of various industry sectors. Finally, it discusses some of the challenges involved in services marketing and principles of service experience design.