Columbia subject headings:
Christian literature--History and criticism.
Christianity and literature--Europe--History.
Literature, Medieval--History and criticism.
Manuscripts, Medieval--History.
Prayer books--History and criticism.
Harvard subject headings:
Catholic Church--Liturgy--Texts--Early works to 1800.
Catholic Church--Liturgy--Texts--Illustrations--Early works to 1800.
Christian art and symbolism
Church history--Middle Ages, 600-1500
Illustrated books.
Prayer books
Princeton subject headings:
Christian literature--History and criticism.
Christianity and literature--Europe--History.
Literature, Medieval--History and criticism.
Manuscripts, Medieval--History.