is a Senior Lecturer at t he Massachusetts Institute of Technology. He is the founding chairman of the Society for Organizational Learning (SoL), a global community of corporations, researchers, and consultants committed "to increase our capacity to collectively realize our highest aspirations and productively resolve our differences through the mutual development of people and institutions".

The Journal of Business Strategy (September 1999) named him a "Strategist of the Century", one of twenty-four men and women who have had the greatest impact on the way we conduct business today.