* The Book of Darkness and Light (2004)
* The Magician's Apprentice (2005)
* The Magician's Challenge (2006)
* The Magician's Triumph (2007)
* The City of Fire (2008)
* The Fortress of Ice (2009)
* The Temple of Air (2010)
* The Palace of Earth (2011)
* The Battle of the Gods (2012)
Short Stories:
* "The Sorcerer's Apprentice" (2004)
* "The Wizard's Apprentice" (2005)
* "The Apprentice's Apprentice" (2006)
* "The Master's Apprentice" (2007)
* "The Apprentice's Master" (2008)
* "The Master's Apprentice" (2009)
* "The Apprentice's Master" (2010)
* "The Master's Apprentice" (2011)
* "The Apprentice's Master" (2012)
Non-Fiction:
* The Writer's Guide to the Cosmos (2010)
* The Writer's Guide to History (2011)
* The Writer's Guide to Science (2012)