Leonard Berry, PhD, is a distinguished professor of marketing and holds the M. B. Zale Chair in Retailing and Marketing Leadership in the Mays Business School at Texas A&M University. He is also professor of humanities in medicine in the Texas A&M Health Science Center's College of Medicine. Dr. Berry is the author of several service-quality bestsellers and the recipient of the American Marketing Association/Irwin/McGraw-Hill Distinguished Marketing Educator Award and the Paul D. Converse Award.