Pedro Nel Gómez (1899–1984) was a Colombian engineer, architect, urban planner, painter, sculptor, and muralist. He said that art would have to serve the people of the future, thus he painted for the future what he saw in the lives of his people’s past and present. He was also a militant member of the Colombian Communist Party and a highly productive artist, which made him one of the great contemporary masters in Latin America. Nel Gómez’s murals followed a geometrically ordered composition, as established by artist and researcher Beatriz González (born 1938), and based on Gomez’s sketch [for] Homenaje al hombre [Homage to Man] (1949). The writer thus linked Gómez with Abstract art. On this point, the contributions of this document are evident: in addition to recognizing sketches as a primary source for analyzing murals, González distanced herself from critics such as Jorge Zalamea (1905–1969), who believed that Gómez’s work showed no sign of the “the spirit of geometry.” The writer also distanced herself from Marta Traba (1923–1983), the Argentine critic initially based in Bogotá, with whom González had studied and who considered the mural compositions of Nel Gómez “chaotic.” The writer’s critical exercise in rehabilitation opened a new space for murals such as Momentos críticos de la nación [Critical Moments for the Nation] (Banco de la República, Bogotá, 1959), in the context of her own aesthetics.