Helen Frankenthaler (1928–2011) was a pioneer of Abstract Expressionism and of the later Color Field movement. She found inspiration in nature, including the idyllic, wooded landscapes of the northeastern United States. This beautiful publication celebrates Frankenthaler and the extraordinary holdings of her work in the collection of the late William Louis-Dreyfus. An avid admirer of Frankenthaler, Louis-Dreyfus collected more than twenty of her paintings, most from the under-studied later decades of her career when she explored techniques of layering color. With beautiful illustrations of works from Louis-Dreyfus’s collection, as well as several from the Helen Frankenthaler Foundation, this publication makes a significant contribution to the study of works from this later period in Frankenthaler’s illustrious career.