Columbia subject headings:
Bookbinding, Medieval--Congresses.
Books--History--400-1450--Congresses.
Illumination of books and manuscripts, Medieval--Congresses.
Manuscripts, Medieval--Congresses.
Harvard subject headings:
Bookbinding, Medieval--Congresses.
Books--History--400-1450--Congresses.
Books--History--To 400--Congresses.
Illumination of books and manuscripts, Medieval--Congresses.
Manuscripts, Medieval--Congresses.
Princeton subject headings:
Books--History--Congresses.
Paper--Congresses.
Printing--History--Congresses.