“Kathleen Bruhn, whose earlier work on the Mexican left remains the definitive analysis of the Democratic Revolutionary Party, adds to her initial scholarly reputation with a fascinating, detailed, original exploration of protest movements in Mexico City and São Paulo, based on a unique, author-generated, extensive data-base from newspaper archives. Bruhn masterfully combines a rigorous comparative framework and empirical analysis with qualitative insights and assessments drawn from years of field research, noting the importance of such variables as organizational culture, resources, political context, and party alliances in explaining differences in protest behavior. Urban Protest in Mexico and Brazil establishes a notable benchmark for understanding the nature and impact of social movements in the region.” Roderick Camp, Claremont McKenna College