Columbia subject headings:
Harvard subject headings:
Comic books, strips, etc.--United States--History and criticism
Comic strip characters--History and criticism.
Comic strip characters--Psychological aspects--History and criticism.
Escape in literature--History and criticism.
Fantasy literature--History and criticism.
German fiction--20th century--History and criticism.
Heroes in literature--Psychological aspects--History and criticism.
Pulp literature--History and criticism.
Serialized fiction--Germany--History and criticism.
Superheroes in literature--Psychological aspects--History and criticism.
Superheroes in literature.
Superheroes--United States--History.
Princeton subject headings:
Comic strip characters--History and criticism.
Comic strip characters--Psychological aspects--History and criticism.
Escape in literature--History and criticism.
Fantasy literature--History and criticism.
Heroes in literature--Psychological aspects--History and criticism.
Pulp literature--History and criticism.
Superheroes in literature--Psychological aspects--History and criticism.