Xanth (1977–2017)
- A Spell for Chameleon (1977)
- Crewel Lye (1987)
- Question Quest (1991)
- The Color of Her Panties (1992)
- Demons Don't Dream (1994)
- Geis of the Gargoyle (1995)
- Harpy Thyme (1995)
- Roc and a Hard Place (1996)
- Faun & Games (1997)
- Ogre, Ogre (1997)
- Yon Ill Wind (1997)
- Zombie Lover (1999)
- Man from Mundania (2000)
- Vale of the Vole (2000)
- The Dastard (2001)
- Xanth (2002)
- Up in a Heaval (2003)
- Currant Events (2005)
- Stork Naked (2006)
- Jumper Cable (2010)
- Xanth by Two (2010)
- Well-Tempered Clavicle (2011)
- Heaven Cent (2013)
- Luck of the Draw (2013)
- Board Stiff (2014)
- Esrever Doom (2014)
- Five Portraits (2014)
- Isis Orb (2016)
- Xone of Contention (2017)