Philip Kotler is an American marketing author, consultant, and professor; the S. C. Johnson & Son Distinguished Professor of International Marketing at the Kellogg School of Management at Northwestern University. He is known for popularizing the definition of marketing mix. He is the author of over 80 books, including Marketing Management, Principles of Marketing, Kotler on Marketing, Marketing Insights from A to Z, Marketing 4.0, Marketing Places, Marketing of Nations, Chaotics, Market Your Way to Growth, Winning Global Markets, Strategic Marketing for Health Care Organizations, Social Marketing, Social Media Marketing, My Adventures in Marketing, Up and Out of Poverty, and Winning at Innovation. Kotler describes strategic marketing as serving as "the link between society's needs and its pattern of industrial response."
Kotler helped create the field of social marketing that focuses on helping individuals and groups modify their behaviors toward healthier and safer living styles. He also created the concept of "demarketing" to aid in the task of reducing the level of demand. He also developed the concepts of "prosumers," "atmospherics," and "societal marketing."