Callahan’s Con

Callahan’s Key

Berserker: Blue Death

Berserkers: The Beginning

Death Match: A Novel

Open Range

Time for the Stars

The Berserker Throne

Berserker Man

Ringworld’s Children

Tailspin

The Politically Incorrect Guide to American History

Villa Incognito

Lifeblood

Landscape Turned Red: The Battle of Antietam

A World Lit Only by Fire: The Medieval Mind and the Renaissance; Portrait of an Age

The Great Chase: The Dodgers-Giants Pennant Race of 1951

Jeb Stuart: The Last Cavalier

How the Catholic Church Built Western Civilization

Free Air