* Fiction
* _A Fistful of Diamonds_ (1985)
* _Den sista dansen_ (1987)
* _Night of the Stormrider_ (1990)
* _Wild Child_ (1993)
* _Röd ängel_ (1996)
* _Den sjunde trumpeten_ (1999)
* _King of Secrets_ (2002)
* _The Serpent Brotherhood_ (2005)
* _The Genesis Device_ (2008)
* _Lazarusporten_ (2011)
* _Exalted_ (2014)
* _Shadowmancer_ (2017)
* Facklitteratur
* _The Illustrated Encyclopedia of the American West_ (1989)
* _The American Frontier_ (1992)
* _The Dictionary of American History_ (1995)
* _The Encyclopedia of the American Revolution_ (1997)
* _The Encyclopedia of American Crime and Punishment_ (2000)
* _The Encyclopedia of the New Millennium_ (2003)
* _The Encyclopedia of the Old West_ (2006)
* _The Encyclopedia of American Law_ (2009)
* _The Encyclopedia of American History:A History of the United States from 1492 to the Present_ (2012)
* Barnböcker
* _The Brave Cowboy_ (1990)
* _The Runaway Train_ (1992)
* _Den förlorade katten_ (1994)
* _Den magiska hästen_ (1996)
* _Den fantastiska hunden_ (1998)
* _Den vänliga draken_ (2000)
* _The Silly Monkey_ (2002)
* _Den smarta kaninen_ (2004)
* _The Busy Bee_ (2006)
* _Den glada pingvinen_ (2008)