Focus: The Art and Soul of Cinema (Damaris Books, 2007)
Dark Matter: A Thinking Fan's Guide to Philip Pullman (Damaris Books, 2005; Inter-Varsity Press, 2006)
Co-authored books
Back in Time (Damaris Books, 2005)
Matrix Revelations: A Thinking Fan's Guide to the Matrix Trilogy (Damaris Books, 2003)
Beyond the Fringe (IVP, 1999)
Books edited by Tony Watkins
Playing God: Talking About Ethics in Medicine and Technology (Damaris Books, 2006)
Spooked: Talking About the Supernatural (Damaris Books, 2006)
Truth Wars: Talking About Tolerance (Damaris Books, 2005)
Sex and the Cynics: Talking About the Search for Love (Damaris Books, 2005)