Clayton M. Christensen (1952–2020) is one of the best-known and most influential thinkers on innovation theory and practice. His research led to one of the most important ideas of the century—disruptive innovation. As a professor at Harvard Business School, he influenced generations of leaders and entrepreneurs. He authored twelve books, including five New York Times bestsellers, and over one hundred articles on disruptive innovation in business, healthcare, and education. Christensen co-founded Innosight, a management consultancy; Rose Park Advisors, an investment firm; and the Clayton Christensen Institute, a nonprofit think tank. He was a friend and mentor to some of the most important innovators of our time.

Michael E. Raynor is a managing director at Deloitte. His twenty-five years of client work and practitioner-centered research address competitive and corporate strategy, innovation, and uncertainty. He is also the author of The Strategy Paradox, The Innovator's Manifesto, and The Three Rules (with Mumtaz Ahmed). His current focus is applying these insights to the challenges of decarbonizing the global economy. He has a doctorate from Harvard Business School, an MBA from the Ivey Business School, and a philosophy degree from Harvard University.