Columbia subject headings:
Art, Modern--20th century--Themes, motives.
Harvard subject headings:
Architecture, Modern--21st century
Art, Modern--20th century
Design--History--20th century
Photography--History--20th century
Princeton subject headings:
Art, Modern--20th century.
Arts, Modern--20th century.
Design--History--20th century.
Photography, Artistic--History--20th century.