Keith Christopher is the author of Simply a Cappella (1995), Perceptions about Caring in an Urban Ethnically Heterogeneous Elementary School Environment (1993), You Alone Will be Exalted (1993), The Prophynoid Pigments of the Caribbean Tunicate Trididemnum Solidum (1989), Time-resolved Spectroscopy of the Excited States of Some Copper (I) Complexes in Solution (1989).