"The Devil's to Pay": John Buford at Gettysburg: A History and Walking Tour

The Illustrated Battle Cry of Freedom: The Civil War Era

The Union Cavalry Comes of Age: Hartwood Church to Brandy Station, 1863

This Republic of Suffering: Death and the American Civil War (National Book Award Finalist)

Protecting the Flank at Gettysburg: The Battles for Brinkerhoff's Ridge and East Cavalry Field, July 2 -3, 1863

Narrative of the Life of Frederick Douglass: An American Slave

Gettysburg's Forgotten Cavalry Actions: Farnsworths Charge, South Cavalry Field, and the Battle of Fairfield, July 3, 1863

Personal Memoirs of Ulysses S. Grant: Volumes One and Two

The Battle of White Sulphur Springs: Averell Fails to Secure West Virginia

Team of Rivals: The Political Genius of Abraham Lincoln

The Battle of Brandy Station: North America's Largest Cavalry Battle

Twelve Years a Slave

Holding the Line on the River of Death: Union Mounted Forces at Chickamauga, September 18, 1863

Crazy Horse and Custer: The Parallel Lives of Two American Warriors

Tullahoma: The Forgotten Campaign that changed the Civil War, June 23–July 4, 1863

The Flags of the Confederacy

"If We Are Striking for Pennsylvania", Volume 2: June 22–30, 1863: The Army of Northern Virginia and the Army of the Potomac March to Gettysburg

Killing Lincoln: The Shocking Assassination that Changed America Forever

"If We Are Striking for Pennsylvania", Volume 1: June 3–21, 1863: The Army of Northern Virginia and the Army of the Potomac March to Gettysburg