Don A. Moore is a professor of Management of Organizations at the Haas School of Business. He studies human overconfidence, including when people think they are better than they actually are, when people think they are better than others, and when people are too sure they know the truth. Understanding the psychological origins of overconfidence sheds light on its implications for human decisions, as well as for organizations and markets. Moore's research has appeared in popular press outlets and academic journals, including the New Yorker, Business Week, USA Today, the Wall Street Journal, National Public Radio, the Journal of Personality and Social Psychology, Experimental Economics, and Psychological Review. Moore is the author or editor of three books, and he teaches popular classes on managing organizations, negotiation, and decision making. He received his Ph.D. from Northwestern University and his B.A. from Carleton College. He is only occasionally overconfident.