Robert Motherwell was an American painter, collagist, writer, editor and teacher, one of the pioneers and principle exponents of Abstract Expressionism. He took up painting seriously in 1941 after studying philosophy at Stanford and Harvard universities and the erudite approach of his writings played a large part in setting the intellectual tone of the Abstract Expressionist movement.

Motherwell was unusual among Abstract Expressionists in that his painting was essentially abstract from the beginning of his career. However, his work was deeply influenced by Surrealism (particularly in the use of automatism) and there is often a suggestion of figuration in the large amorphous shapes of his paintings. Moreover, the intellectual sensibilities he brought to his work are reflected in the inspiration from literature, history, or his personal life. For example he painted a series of works (more than 100 pictures) entitled 'Elegy to the Spanish Republic'. By the late 1960's his style had moved towards Colour Field Painting. He was an extremely prolific artist and also displayed great energy as a writer, teacher, and lecturer.