Teresa Amabile is the Edsel Bryant Ford Professor of Business Administration and a director of research at Harvard Business School, as well as co-author of The Progress Principle. Originally educated as a chemist, Amabile received her doctorate in psychology from Stanford University. She studies how everyday life inside organizations can influence people and their performance. Steven J. Kramer is an independent researcher, consultant, and co-author of The Progress Principle. He received his doctorate in developmental psychology from the University of Virginia and has served as a post-doctoral research associate at Vanderbilt University and a psychology professor at Brandeis University. Kramer’s current research interests include the psychology of everyday work and the fundamental role of work in human experience and history.