Her work has been shown at the DeCordova Museum, The Neuberger Museum, The Rose Art Museum, American Academy of Arts and Letters, McKenzie Fine Art, and The National Academy of Design and among others. She has been written about in Art in America, Art New England, Boston Globe, San Francisco Chronicle, Art News, Los Angeles Times, New American Paintings, as well as numerous other publications. Walker holds a BFA from California College of the Arts and an MFA from University of North Carolina at Chapel Hill.