He has contributed to a number of books, including All Music Guide to Rock: The Definitive Guide to Rock, Pop, and Soul, and All Music Guide to Hip-Hop: The Definitive Guide to Rap & Hip-Hop.
Hän on osallistunut useiden kirjojen kirjoittamiseen, joita ovat muun muassa "All Music Guide to Rock: The Definitive Guide to Rock, Pop, and Soul" ja "All Music Guide to Hip-Hop: The Definitive Guide to Rap & Hip-Hop".