The Caesars by Thomas De Quincey

The History of Roman Literature by Charles Thomas Cruttwell

The Reign of Tiberius, Out of the First Six Annals of Tacitus by Cornelius Tacitus

The Women of the Caesars by Guglielmo Ferrero

The Provinces of the Roman Empire, v.1 by Theodor Mommsen

The Provinces of the Roman Empire, v.2 by Theodor Mommsen

The History of Rome, Book I by Theodor Mommsen

The History of Rome, Book II by Theodor Mommsen

The History of Rome, Book III by Theodor Mommsen

The History of Rome, Book IV by Theodor Mommsen

The History of Rome, Book V by Theodor Mommsen

The Roman History of Ammianus Marcellinus by Ammianus Marcellinus

The Gracchi Marius and Sulla Epochs Of Ancient History by A.H. Beesley

The Story of Rome from the Earliest Times to the End of the Republic by Arthur Gilman

The Life of Cicero, Volume 1 by Anthony Trollope

The Life of Cicero, Volume 2 by Anthony Trollope

History of the Decline and Fall of the Roman Empire — Volume 1 by Edward Gibbon

History of the Decline and Fall of the Roman Empire — Volume 2 by Edward Gibbon

History of the Decline and Fall of the Roman Empire — Volume 3 by Edward Gibbon

History of the Decline and Fall of the Roman Empire — Volume 4 by Edward Gibbon

History of the Decline and Fall of the Roman Empire — Volume 5 by Edward Gibbon

History of the Decline and Fall of the Roman Empire — Volume 6 by Edward Gibbon

Tacitus on Germany