Columbia subject headings:
Christian art and symbolism.
Icons.
Harvard subject headings:
Council of Nicaea (2nd : 787)
Iconoclasm
Icons--Cult
Icons--Cult--History.
Idols and images--Worship.
Image (Theology)--History of doctrines.
Orthodox Eastern Church--Doctrines--History.
Orthodox Eastern Church--Doctrines.
Veneration of icons and Christian union.
Princeton subject headings: