Mary Cassatt (1844-1926), the American-born Impressionist, was captivated by the challenges and artistic possibilities of making prints. These works were a central part of her discipline as a draughtsman, allowing her to focus on the essentials of form, gesture, and expression. During Cassatt's extended residence in France, Ambroise Vollard, the cutting-edge dealer in Paris best known for his appreciation and promotion of the works of Cézanne and Picasso, was stunned by the vitality and modern vision of her works on paper. In particular, Vollard was fascinated by the sequential development of the prints, which provided an extraordinary visual record of her creative process. Vollard later acquired Cassatt's entire collection of her prints and drawings, most of which had never been exhibited.