"Thomas has done a great job showing how the Helsinki human rights norms mattered. . . . The writing is excellent. The story is compelling."--Stephen D. Krasner, Stanford University""The Helsinki Effect" offers a very well written and accessible account of some of the most important historical events of our age, and a powerful argument about the role of Helsinki norms. This book will attract a wide readership in political science but will also appeal to audiences in history and sociology who are interested in social movements."--Martha Finnemore, George Washington University"This book represents a major contribution to debates on the origins and effects of international norms. It argues that international norms can affect outcomes by transforming relations between state and societal actors. Above all, Thomas demonstrates in great detail and most convincingly how the Helsinki human rights norm contributed to the collapse of Communism and the end of the Cold War in Europe. Required reading for anybody interested in these themes!"--Thomas Risse, European University Institute