Columbia subject headings:
Art brut--Illinois--Chicago.
Art.
Artists' books--Illinois--Chicago.
Darger, Henry, 1892-1973. In the realms of the unreal.
Folk art--Illinois--Chicago.
Outsider art--Illinois--Chicago.
Harvard subject headings:
Art brut--Illinois--Chicago.
Artists' books--Illinois--Chicago.
Darger, Henry, 1892-1972. In the realms of the unreal.
Princeton subject headings: