Don Sexton is Professor of Business at Columbia University and President of The Arrow Group, Ltd.® He is a recipient of Columbia Business School's Distinguished Teaching Award, and has worked with numerous well-known companies. His articles on branding and marketing have appeared in such publications as the Harvard Business Review and the Journal of Marketing, and he is frequently quoted in media outlets such as the New York Times and BusinessWeek. He is also the author of Trump University Marketing 101, from Wiley.