* The Dreaming City (1983)
* The Last Unicorn (1985)
* The Hidden Room (1986)
* The Lost Princess (1987)
* The Unicorn's Secret (1988)
* The Forbidden Land (1989)
* The Enchanted Kingdom (1990)
* The Magic Forest (1991)
* The Dragon's Lair (1992)
* The Giant's Castle (1993)
* The Wizard's Tower (1994)
* The Land of the Dead (1995)
* The End of the World (1996)
* The Beginning of Time (1997)
* The Last Battle (1998)
Non-fiction:
* The Unicorn: A Symbol of Magic (1999)
* The Last Unicorn Chronicles (2000)
* The Unicorn Book of Spells (2001)
* The Unicorn Tarot (2002)
* The Unicorn Oracle (2003)
* The Unicorn Goddess (2004)
* The Unicorn: A Guide to the Sacred Animal (2005)
* The Unicorn: A Coloring Book (2006)
* The Unicorn: A Journal (2007)
* The Unicorn: A Gift Book (2008)
* The Unicorn: A Keepsake Box (2009)
* The Unicorn: A Collection of Stories and Poems (2010)
* The Unicorn: A Treasury of Art and Literature (2011)
* The Unicorn: A Symbol of Hope (2012)