**EDGAR H. SCHEIN **is Professor Emeritus in the Massachusetts Institute of Technology (MIT) Sloan School of Management. He's widely regarded as the founder of the field of organizational culture and has authored the defining resource on the topic.JOHN VAN MAANENis the Erwin H. Schell Emeritus Profe...

**EDGAR H. SCHEIN **is Professor Emeritus in the Massachusetts Institute of Technology (MIT) Sloan School of Management. He's widely regarded as the founder of the field of organizational culture and has authored the defining resource on the topic.JOHN VAN MAANENis the Erwin H. Schell Emeritus Professor of Work and Organization Studies at the MIT Sloan School of Management. He is an ethnographer of organizations ranging in type from police organizations to educational institutions to business firms.PETER A. SCHEIN is the co-founder and Chief Operating Officer of OCLI.org. He offers counsel to senior management on organizational development challenges facing private and public sector entities worldwide.