Karen Fitzgerald’s work has been widely exhibited in the United States, including at the Queens Museum of Art, Islip Art Museum, Rahr-West Museum, Madison Art Museum, Milwaukee Art Museum, Milwaukee Institute of Art Design, the University of Arizona Tucson, and the United Nations in New York. Her work is in the Spencer Collection of the New York Public Library, Brooklyn Union Gas collection, the Reinhart Collection of Germany, the Museum of New Art in Detroit, and many other public and private collections. For the past twenty years, she has been working exclusively in the circular tondo form.