Helen Frankenthaler was an American painter and printmaker known for her unique method of staining canvas with thin veils of color. Her practice can be seen as a bridge between the Abstract Expressionists of the 1950s and the Color Field painters of the 1960s. The techniques employed in works such as Mountains and Sea (1952)—a pastel blend of oil paint and charcoal on unprimed canvas—were influential to both Morris Louis and Kenneth Noland. “One really beautiful wrist motion, that is synchronized with your head and heart, and you have it,” she once said of her practice. “It looks as if it were born in a minute.” Born on December 12, 1928 in New York, NY, she studied with Rufino...