Columbia subject headings:
Arts, American--20th century.
Arts, American.
Arts, European--20th century.
Arts, European.
Avant-garde (Aesthetics)--Europe--History--20th century.
Avant-garde (Aesthetics)--United States--History--20th century.
Harvard subject headings:
Arts, American--20th century
Arts, American.
Arts, European.
Arts, Modern--20th century--Europe.
Avant-garde (Aesthetics)--Europe--History--20th century.
Avant-garde (Aesthetics)--United States--History--20th century.
Princeton subject headings:
Art, Modern--20th century.
Artists--Interviews.
Arts--Experimental methods.
Conceptual art.
Interviews.