EDGAR H. SCHEIN Edgar H. Schein is Sloan Fellows Professor of Management Emeritus at the MIT Sloan School of Management. His consulting work focuses on organizational culture, organization development, process consultation, and career dynamics, and among his past and current clients are major corporations both in the U.S. and overseas such as Digital Equipment Corporation, Ciba-Geigy, Apple, Citibank, General Foods, Procter & Gamble, ICI, Saab Combitech, Steinbergs, Alcoa, Motorola, Hewlett-Packard, Exxon, Shell, AMOCO, Con Edison, and the Economic Development Board of Singapore. Ed Schein has been a prolific researcher, writer, teacher and consultant. Besides his numerous articles in professional journals he has authored fourteen books. He has received many honors and awards for his writing and is a Fellow of the American Psychological Association and the Academy of Management. JOHN VAN MAANEN works within the fields of organization behavior and theory, and is an ethnographer of organizations ranging from police departments to educational institutions to a variety of business firms. In addition, he has worked with numerous public and private organizations in North America, Europe, and Asia, including BP, IBM, BMW, Siemens, the U.S. Internal Revenue Service, Lafarge, Warburg Dillon Read, and the National University of Technology (Singapore). He has taught at MIT Sloan since 1972. He was the faculty chair of the MIT Sloan Fellows Program at MIT from 1994 to 2000, and is currently faculty chair of the Organization Studies Group. Van Maanen has been a visiting professor at Yale University, University of Surrey, and, most recently, at INSEAD. Van Maanen has published a number of books and articles in the general area of occupational and organizational sociology. Cultural descriptions figure prominently in his studies of the work worlds of patrol officers on city streets in the United States, police detectives and their "guv'nors" in London, fishermen in the North Atlantic, MBA students at MIT and Harvard Business School, and park operatives in the Sistine Chapel of Fakery, Disneyland. He is the author, co-author, and editor of numerous books, including Organizational Careers (Wiley, 1977), Policing: A View from the Street (with Peter Manning, Random House, l978), and Tales of the Field (University of Chicago Press, l988). His most recent books are Qualitative Studies of Organizations (Sage, 1999) and Organizational Transformations and Information Technology (with Joanne Yates, Sage, 2001).