- The Medici: Godfathers of the Renaissance
- Mendeleyev's Dream: The Quest for the Elements
- The Artist, the Philosopher and the Warrior: Three Renaissance Lives
- Death in Florence: The Medici, Savonarola, and the Battle for the Soul of a Renaissance City
- Empire: A New History of the World: The Rise and Fall of the Greatest Civilizations
- James M. McCormick
- Wendy Dean
- Judy Selfridge-Thomas
- Gianfranco Poggi
- Susan E. Chapelle
- Peter Megargee Brown
- C. Britt Beemer
- Ellendea Proffer
- Martin Campbell-Kelly
- Shari Klein
- J. Shoenfelt
- Hugh Davis Graham
- Henry Julian Abraham
- Marshall W. Meyer
- Theodor Mommsen
- Shirley Bury
- Brian G. Brunsvold
- Dennis P. O'Reilley
- Willa Pauli
- Carl Ray Proffer