Geometric Abstraction.

The article discusses the 1950s-1960s work of Colombian artists Edgar Negret and Eduardo Ramírez-Villamizar, whose work in New York City influences abstract geometric art in Colombia. The author focuses on Negret's "Magic Machines" sculpture and relief series and Ramírez-Villamizar's "White Reliefs" series. Specific topics include the abstract expressionist movement in New York City, the Coenties Slip group of artists, 1960s exhibitions of abstract art in New York City and Bogotá, Colombia, and other abstract artists including Ellsworth Kelly and Louise Nevelson.