Fiction
* The Divide (1999)
* The Cutting (2000)
* The Void (2001)
* The Edge (2002)
* The Fall (2004)
* The Fury (2005)
* The Void Chronicles (omnibus edition of the first three Void books) (2006)
* The Edge of Oblivion (2007)
* The Fury of the Void (2008)
* The Reckoning (final book in the Void series) (2009)
* The Dead of Night (2010)
* The Whisper of Shadows (2011)
* The Echo of Bone (2012)
* The Haunting of Hill House (2013)
* The Turn of the Screw (2014)
* The Great Gatsby (2015)
* The Picture of Dorian Gray (2016)
Non-fiction
* The Art of Darkness: The History and Techniques of Horror Cinema (2011)
* The Science of Fear: Understanding Why We Love to Be Scared (2013)
* Gothic Horror: A History (2015)
* The Philosophy of Horror: A Guide to the Dark Side of Life (2017)
* The Psychology of Horror: Why We Love to Hate It (2019)