Composicion social dominicana (Social Composition of the Dominican Republic), first published in 1970 in Spanish, and translated into English here for the first time, discusses the changing structure of social classes and groups in Dominican society from the first encounter between Europeans and Natives until the mid-twentieth century. This influential and pioneering book details the struggles of the Dominican people as they evolved from pre-colonial and colonial subjects to sovereign actors with the task of moving a republic forward, amidst imperialist desires and martial ambitions. Juan Bosch, one of the most well-known and best-loved Dominican politicians and scholars, here sets out the important themes that define modern Dominican society. He tackles topics such as the inter-imperialist rivalry between France, Spain, England, and Holland and its subsequent impact on the Caribbean region, as well as the U.S. occupation of the Dominican Republic from 1916-1924. He also discusses the aftermath of political alliances between liberals and conservatives during the birth of the Dominican Republic, the Restoration War fought against the Spanish Crown, the role of the petit bourgeoisie and the hateros (cattle-ranchers) in the formation of a Dominican oligarchy, the emergence of dictator Rafael Trujillo, and the composition of society during his time in power. This translation, introduced and contextualized by leading Dominican Studies scholar Wilfredo Lozano, opens up Bosch's work for a new generation of scholars studying the Caribbean.