Drawing on extensive ethnographic research, Wolford compares the development of the movement in Brazil’s southern state of Santa Catarina and its northeastern state of Pernambuco. As she explains, in the south, most of the movement’s members were sons and daughters of small peasant farmers; in the northeast, they were almost all former plantation workers, who related awkwardly to the movement’s agenda of accessing “land for those who work it.” The MST became an effective presence in Pernambuco only after the local sugarcane economy had collapsed. Worldwide sugarcane prices dropped throughout the 1990s, and by 1999 the MST was a prominent political organizer in the northeastern plantation region. Yet fewer than four years later, most of the region’s workers had dropped out of the movement. By delving into the northeastern workers’ motivations for joining and then leaving the MST, Wolford adds nuance and depth to accounts of a celebrated grassroots social movement, and she highlights the contingent nature of social movements and political identities more broadly.