In The CIA in Ecuador, Marc Becker draws on recently released US government surveillance documents on the Ecuadorian left to chart social movement organizing efforts during the 1950s. Emphasizing the competing roles of the domestic ruling class and grassroots social movements, Becker details the struggles and difficulties that activists, organizers, and political parties confronted. He shows how leftist groups, including the Communist Party of Ecuador, navigated disagreements over tactics and ideology, and how these influenced shifting strategies in support of rural Indigenous communities and urban labor movements. He outlines the CIA's failure to understand that the Ecuadorian left was rooted in local social struggles rather than being bankrolled by the Soviet Union. By decentering US-Soviet power struggles, Becker shows that the local patterns and dynamics that shaped the development of the Ecuadorian left could be found throughout Latin American during the cold war.