Peter M. Senge is a senior lecturer at the Massachusetts Institute of Technology. He is also founding chair of the Society for Organizational Learning (SoL), a global community of corporations, researchers, and consultants dedicated to the "interdependent development of people and their institutions." He is the author of the widely acclaimed book, The Fifth Discipline: The Art and Practice of The Learning Organization (1990) (revised edition published March 2006), and, with colleagues Charlotte Roberts, Rick Ross, Bryan Smith and Art Kleiner, co-author of The Fifth Discipline Fieldbook: Strategies and Tools for Building a Learning Organization (1994) and a fieldbook The Dance of Change: The Challenges to Sustaining Momentum in Learning Organizations (March, 1999), also co-authored by George Roth.