She is a painter using oil on canvas, but often incorporates non-traditional artist materials in her work, such as dish towels, vacuum cleaner bags, thread, or soap. (joanmitchellfoundation.org)
Related to abstract expressionism was the emergence of combining manufactured items with artist materials, moving away from previous conventions of painting and sculpture. (en.wikipedia.org)
This year, the annual Prize wanted to open its doors to artists living outside of London, and so the prize money includes # 2,000 to go towards studio rent, as well as an additional # 5,000 cash stipend, and up to # 3,000 worth of artist materials from world leading painting brands. (creativeboom.com)