Edgar Negret Dueñas (Popayán, October 11, 1920-Bogotá, October 11, 2012) was an abstract Colombian sculptor. Together with Hugo Martínez González and Eduardo Ramírez Villamizar, they introduced the ab.. Read more »stractionist and geometric sculpture in Colombia in the mid-twentieth century. His works are characterized by a wide use of iron and aluminum as structural and formal material, joining their sheets and parts using nuts and screws. His sculptures are also characterized by the use of geometric elements and compositional rigour. There are several sculptures of him in the public areas of Bogotá, Medellín and Valencia.