Focusing on both famous and forgotten (or simply overlooked) artists and luminaries in music, literature, business, science, politics, and other fields, Harvard law professor (and passionate Beatles fan) Cass Sunstein explores why some individuals become famous and others don't. He examines recent research on informational cascades, network effects, and group polarization, and offers a new understanding of the roles played by greatness, luck, and contingency in the achievement of fame.