* The Tenth Circle (2001)
* Halflings (2005)
* The Highland (2007)
* The Legends of Hallow Crest (2009)
* The Lost Prince (2012)
* Chronicles of the Concord Dawn (2014–)
Non-Fiction
* The Man Behind the Mask: The Life of George Washington (1992)
* The Rise and Fall of Jimmy Hoffa (1994)
* The Mafia: A History of the World's Most Powerful Organized Crime Syndicate (1997)
* The History of the United States: A Brief Overview (1999)
* The Civil War: A History of the United States (2001)
* The American Revolution: A History of the United States (2003)
* The Second World War: A History of the United States (2005)
* The Vietnam War: A History of the United States (2007)
* The Persian Gulf War: A History of the United States (2009)
* The War on Terror: A History of the United States (2011)