George S. Day is the Geoffrey T. Boisi Emeritus Professor and Emeritus Faculty in Residence at the Mack Center for Technological Innovation at the Wharton School, University of Pennsylvania. He was previously the Executive Director of the Marketing Science Institute and is a past chairman of the American Marketing Association (AMA). Day has authored 20 books in the areas of marketing, innovation and strategic management and has published over 135 articles. He has won one best book award and 10 best article awards, and two of these articles were among the top 25 most influential articles in marketing science in the past 25 years. He was honored with the Charles Coolidge Parlin Award in 1994, the Paul D. Converse Award in 1996, the Sheth Foundation award in 2003, the Mahajan Award for career contributions to strategy in 2001, and the AMA/Irwin/McGraw-Hill Distinguished Marketing Educator Award in 2003. In 2011, he was selected to be one of 11 Legends in Marketing.