Do you identify yourself by your profession or achievements, rather than your family network? Do you cultivate your unique attributes and goals? If so, perhaps you are WEIRD: raised in a society that is Western, Educated, Industrialized, Rich and Democratic. Unlike most who have ever lived, WEIRD people are highly individualistic, nonconformist, analytical and control-oriented. Joseph Henrich, who developed the game-changing concept of WEIRD, uses leading-edge research in anthropology, psychology, economics and evolutionary biology to explore how changing family structures, marriage practices and religious beliefs in the Middle Ages shaped the Western mind. Brilliant, provocative, engaging and surprising, this landmark study will revolutionize your understanding of who—and how—we are now.