As an author, his books include: "The Henry Root Letters" (1980), "The Further Letters of Henry Root" (1980), "Henry Root's World of Knowledge" (1982), "The Complete Naff Guide" (1983), "The Naff Sex Guide" (1984), "Henry Root's A-Z of Women: The Definitive Guide" (1985), "Is This Allowed?" (1987), "The Soap Letters" (1988), "Root into Europe" (1992), "Root about Britain" (1994), "From Winchester To This" (1998), "Brewer's Rogues, Villains and Eccentrics (2002), "I Am Leaving You Simon, You Disgust Me" (2003) and "The Dictionary of National Celebrity" (2005) (co-written with
Hermione Eyre)