Howard is a highly acclaimed writer and scholar, noted for his studies of Inklings C.S. Lewis (C.S. Lewis: Man of Letters [1987]) and Charles Williams (The Novels of Charles Williams [1991]), as well as books including Christ the Tiger (1967), Chance or the Dance? (1969), Hallowed be This House (1976), Evangelical is Not Enough (1984), If Your Mind Wanders at Mass (1995), On Being Catholic (1997),