How the Irish Saved Civilization: The Untold Story of Ireland's Heroic Role from the Fall of Rome to the Rise of Medieval Europe

Say Nothing: A True Story of Murder and Memory in Northern Ireland

Charlie One: The Story of an Irishman in the British Army and His Role in Covert Counter-Terrorism Operations

The Glorious Heresies: 'A big, brassy, sexy beast of a book' IRISH TIMES

Red Sky in Morning: author of the 2023 Booker Prize-Winning novel Prophet Song

The Crooked Branch

The Outside Boy

The Padre: The True Story of the Irish Priest who Armed the IRA with Gaddafi's Money

The History of Ireland

Secret Child

Kathleen in Ireland

The Scandalous Lady W

Finn McCool: Irish Heroes

Four Shots in the Night: A True Story of Stakeknife, Murder and Justice in Northern Ireland

The Strangers' House: Writing Northern Ireland

History of Britain and Ireland: The Definitive Guide

Saint Patrick Retold: The Legend and History of Ireland's Patron Saint

The Dublin Railway Murder: The sensational true story of a Victorian murder mystery

Scáthach: Warrior Queen from the Isle of Skye