Mark I. Rosen, Ph.D., is an adjunct professor of management at Bentley College in Waltham, Massachusetts. He received his Ph.D. in industrial relations from the University of Wisconsin-Madison. For more than five years, Rosen has taught the popular workshops "The Mystic and the Manager," "Working with Difficult People," and "Thank You for Being Such a Pain." He has also been the program director for the Jewish Healing Center of New England. Rosen has served as a consultant to nonprofit organizations and businesses since 1980 and is the founder of WorkWisdom, a management consulting practice.