How to Drink: A Classical Guide to the Art of Imbibing

How to Grow Old: Ancient Wisdom for the Second Half of Life

History and Morality

How to Tell a Joke: An Ancient Guide to the Art of Humor

The Fall of Rome: And the End of Civilization

The Roman Empire in Crisis, 248-260: When the Gods Abandoned Rome

Humour

Northern Ireland: A Very Short Introduction (2nd Edition)

A New Ireland: How Europe's Most Conservative Country Became Its Most Liberal

We Dared to Win: The SAS in Rhodesia

The Irish Assassins: Conspiracy, Revenge and the Phoenix Park Murders that Stunned Victorian England

Countdown to D-Day: The German Perspective

War in the Age of Trump: The Defeat of ISIS, the Fall of the Kurds, the Conflict with Iran

No Greater Ally: The Untold Story of Poland’s Forces in World War II

Russia's Crony Capitalism: The Path from Market Economy to Kleptocracy

Northern Ireland: The Fragile Peace

Lost Heirs of the Medieval Crown: The Kings and Queens Who Never Were