"Readers can use this book to make sense of how, under what conditions, and to what ends socially excluded groups challenge institutions in power." --Veronica Terriquez, University of California, Santa Cruz "An accessible introduction. Almeida expertly guides the reader, illustrating his presentation with inspiring examples of twenty-first-century protest movements."--Ruth Milkman, 2016 President of the American Sociological Association and author of On Gender, Labor, and Inequality "Weaves together empirical case analyses with deep theoretical engagement to teach us how to identify, conceptualize, and study collective action." --Paul Y. Chang, Harvard University, author of Protest Dialectics "This tour de force provides a thoughtful overview of the field and an excellent roadmap for future research--an indispensable resource for students and scholars alike."--Cecilia Menjívar, University of California-Los Angeles, author of Enduring Violence