Books

Myths and Legends of the Celts. London: Penguin, 2005

Contemporary Irish Cinema. Syracuse: Syracuse University Press, 1999.

Dictionary of Celtic Mythology. Oxford: Oxford University Press, 1998.

Irish Literature: A Reader, with M. Murphy. Syracuse: Syracuse University Press, 1987; revised edition, 2005.

Fionn mac Cumaill: Celtic Myth in English Literature. Syracuse University Press, 1986, 2001

Speaking of Words, with D. W. Cross. New York: Holt, Rinehart & Winston, 1978, 1982, 1986.

The Copy Book, with T. Friedmann. New York: Holt, Rinehart & Winston, 1980.