Charles H. Green is a speaker and executive educator on trust-based relationships and Trust-based Selling in complex businesses. He is author of Trust-based Selling (McGraw-Hill, 2005), and co-author of The Trusted Advisor (with David Maister and Rob Galford, Free Press, October 2000).

Charles has spoken before a variety of industry and functional groups. An engaging and content-rich speaker, he has taught in executive education programs for the Kellogg Graduate School of Business at Northwestern, and for Columbia University Graduate School of Business, as well as through his own firm, Trusted Advisor Associates. His work centers on improving trust-based relationship and business development skills for businesses with complex service offerings.

Charles is a graduate of Columbia College (BA Philosophy, 1972) and of the Harvard Business School (MBA, 1976). He spent the first twenty years of his career with the MAC Group and its successor, Gemini Consulting, where his roles included strategy consulting (in Europe and the United States), VP Strategic Planning, and a variety of other firm leadership positions.

Charles' clientele includes technology businesses, professional services firms, financial services organizations, businesses selling complex services, and organizations with internal consultative functions like IT, legal, consulting and human resources .

In addition to The Trusted Advisor, he has published articles in Harvard Business Review, Directorship Magazine, and American Lawyer, and is a contributing editor at RainToday.com.