It’s been more than half a century since Philip Kotler first published his principles of marketing, which has defined the practice of millions of professionals worldwide ever since. It’s no stretch to say that before Kotler, there was no marketing profession.
What made Kotler different than what came before is that he took insights from other fields, such as economics, social science and analytics and applied them to the marketing arena. Although it seems basic now, it was groundbreaking then.