Knowles first introduced her work internationally through the Fluxus group in the early sixties. She has worked continually since then as a visual artist, doing sound works for radio, performances and installations. She has authored a number of books and articles. As poet and writer, she continues to expand the spirit of Fluxus in her recent work. Much of her studies concern food - beans, for example. Joshua Selman has collaborated with her on several sound art projects including Frijoles Canyon, Setsubun and Northwater Song. Recently published are her books, Spoken Text and Bread and Water.