Herrera's work has remained uncompromisingly abstract and minimal throughout her career — although the hard - edge,
rectilinear qualities of her paintings are, on closer inspection, belied by their obviously hand - painted expanses of color.
After abandoning a surrealistic, biomorphic style in the late 1940s, Herrera's work has remained uncompromisingly abstract and minimal ever since — although the hard - edge,
rectilinear qualities of her paintings are, on closer inspection, belied by their obviously hand - painted expanses of color.