Helen Frankenthaler is an American Abstract Expressionist painter. She is an important and major contributor to the history of postwar American painting. Having exhibited her work in six decades she has spanned several generations of abstract painters while continuing to produce vital and ever-changing new work. Her work has been the subject of several retrospective exhibitions; including a 1989 retrospective at the Museum of Modern Art in New York City. Her work has been exhibited worldwide since the 1950s.