Civil War Books
 Glory Enough for All: The Battle of the Crater: A Novel of the Civil WarSt. Martin’s Press, 1993 |
 Month of the Freezing Moon: The Sand Creek Massacre, November 1864St. Martin’s Press, 1990 |
 Over the Earth I Come: The Great Sioux Uprising of 1862St. Martin’s Press, 1992 |
 Quantrill’s War: The Life and Times of William Clarke Quantrill, 1837-1865St. Martin’s Press, 1996 |
 The Dahlgren Affair: Terror and Conspiracy in the Civil WarW. W. Norton, 1998 |
 The Most Glorious Fourth: Vicksburg and Gettysburg, July 4th, 1863W. W. Norton, 2002 |
 George Armstrong CusterPalgrave Macmillan, 2010 |
 The Fate of War: Fredericksburg, 1862Westholme Publishing |
 Coming Through Fire: George Armstrong Custer and Chief Black KettleWestholme Publishing, 2012 |