The author, a behavioral economist, challenges our preconceptions about dishonesty; we all cheat, whether it is copying a paper in the classroom, or white lies on our expense accounts. He explores how unethical behavior works in the personal, professional, and political worlds, and how it affects all of us, even as we think of ourselves as having high moral standards. He explores the question of dishonesty from Washington to Wall Street, and the classroom to the workplace, to examine why cheating is so prevalent and what can be done to prevent it.