Columbia subject headings:
Aesthetics.
Art criticism.
Art--Philosophy.
Lukács, György, 1885-1971--Correspondence.
Popper, Leó, 1886-1911--Correspondence.
Harvard subject headings:
Aesthetics
Art
Art.
Lukács, György, 1885-1971--Correspondence.
Popper, Leó, 1886-1911--Contributions in art.
Popper, Leó, 1886-1911--Correspondence.
Princeton subject headings: