Columbia subject headings:
Imprisonment in literature.
Literature, Modern--18th century--History and criticism.
Literature, Modern--19th century--History and criticism.
Literature, Modern--20th century--History and criticism.
Prisons in literature.
Harvard subject headings:
Imprisonment in literature.
Literature, Modern--18th century--History and criticism
Literature, Modern--19th century--History and criticism
Literature, Modern--20th century--History and criticism
Prisons in literature.
Princeton subject headings:
Imagination.
Prisoners as authors.
Prisons in literature.