The document discusses the nature and characteristics of services. It defines the service industry as including the governmental, private nonprofit, business, and manufacturing sectors. Services are categorized from pure tangible goods with no services to pure services that are simply intangible. Key characteristics of services are that they are intangible, inseparable from their production and consumption, can vary between providers and over time, and cannot be inventoried. The document provides examples to illustrate different categories of services and concludes with a recap of services sectors, categories, and characteristics.