This document defines marketing and explains key marketing concepts. Marketing is defined as a set of processes for creating and delivering value to customers to improve customer relationships. The marketing concept focuses on satisfying customer needs while meeting organizational profit goals. An effective marketing strategy selects a target market and develops a marketing mix involving the four Ps - product, price, place, and promotion. The target market is segmented based on demographics, geographics, behaviors, and psychographics to effectively reach customers.