In this volume the authors engage in a provocative discussion of the history and contemporary dilemmas facing the movements that are variously described as antisystemic, social or popular. The authors believe that these movements, which have for the past 150 years protested and organized against the multiple injustices of the existing system, are the key locus of social transformation.Immanuel Wallerstein begins by presenting a historical overview of the range and interrelations wha...