Dr. Gill is a comparative mythologist whose work examines the cross-cultural and interdisciplinary nature of myth, particularly its literary, philosophical, psychological, and religious significance. His research focuses on theories of myth in relation to areas of culture that have produced and or been directly influenced by the most significant mythological traditions. In the Humanities program, he teach courses on Theories of Myth and Symbolism, Classical Mythology, Celtic Mythology, the Bible as Myth, Myth and Popular Culture, and the mythology of J.R.R. Tolkien.

Theories of Myth (esp. Northrop Frye, C.G. Jung, Mircea Eliade, and Joseph Campbell)
Literary Theory and Criticism
Depth Psychology
Phenomenology
Biblical Studies
Classical Mythology
Celtic Mythology
Twentieth-Century Literature (esp. J.R.R. Tolkien)