This document provides an overview of key marketing concepts for the 21st century. It discusses how the digital revolution has benefited both consumers and firms. The tasks of marketing are explained, including entrepreneurial and formulated approaches. The document defines what can be marketed and provides definitions of marketing from Kotler and the AMA. Core marketing concepts are outlined like segmentation, products/brands, exchange/transactions, and channels. Company orientations like production, product, selling, marketing, and societal concepts are contrasted. Objectives of the chapter are to understand new economic challenges and learn major marketing tools and concepts.