Columbia subject headings:
Book design--History--Congresses.
Knowledge, Theory of--Congresses.
Harvard subject headings:
Book design--History--20th century--Congresses.
Book design--History--Congresses.
Bookbinding--History--20th century--Congresses.
Illustration of books--History--20th century--Congresses.
Knowledge, Theory of--Congresses
Layout (Printing)--History--20th century--Congresses.
Princeton subject headings: