This document discusses the concept and nature of services. It provides definitions of services from various scholars over time, highlighting that services are activities rather than tangible goods. The key characteristics that distinguish services are their intangibility, inseparability of production and consumption, heterogeneity, perishability, and the lack of ownership transfer. The growth of the services sector is attributed to increasing consumer affluence, more working women, double-income households without children, greater leisure time, longer life expectancy, and product innovations - all of which have led to new types of services emerging.