One of the most sweeping works of social criticism to appear in years, this work offers a bold theory of modern classes and a comprehensive portrait of the modern professional. Drawing on one of the largest studies ever undertaken, including interviews with over 1,000 professionals, the authors show how experts, claiming a monopoly on many types of knowledge, are radically transforming the economic and social order. This book demonstrates how this has resulted in many citizens becoming deeply insecure about their competence to manage private and public affairs without professional guidance. The authors make a case for a society that radically democratizes knowledge while retaining many non-exclusive aspects of professionalism.