Dictionaries, and other reference materials can be used to identify important concepts, and find definitions. The University of Lethbridge Library has a large collection of dictionaries related to religious studies. Following are a few of the key dictionaries related to Christianity:
Theological dictionary of the New Testament
by
edited by Gerhard Kittel and Gerhard Friedrich ; translated by Geoffrey W. Bromiley ; abridged in one volume by Geoffrey W. Bromiley.
Dictionary of philosophy and religion : Eastern and Western thought
by
William L. Reese
The Concise Dictionary of Christian Tradition: doctrine, liturgy, history
by
J. D. Douglas; Walter A. Elwell; Peter Toon
The Continuum Dictionary of Religion
by
Michael Pye (Editor)