Formação Política do Agronegócio is an essential book for understanding contemporary Brazil. Caio Pompeia examines the political intricacies of the self-proclaimed most important sector of the national economy. From the origin of the concept of agribusiness at Harvard University, in the 1950s — soon used as a front for imperialist expansion by the United States —, to the first years of the Jair Bolsonaro government, through internal disputes between entities that represent Brazilian agribusiness within and outside the farms, the author explains in detail, giving names to the oxen, how agriculture entered the State and imposed its agenda on the country, with successive attempts to pass the tractor over agrarian reform, indigenous rights, environmental preservation and the will of the polls.