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

The History of Ireland

The Crooked Branch

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

The Outside Boy

Secret Child

Kathleen in Ireland

The Scandalous Lady W

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

The Strangers' House: Writing Northern Ireland

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

Music Across the Mersey

The Border: The Legacy of a Century of Anglo-Irish Politics

The Search for God and Guinness: A Biography of the Beer that Changed the World

Thatcher's Spy: My Life as an MI5 Agent Inside Sinn Féin

When the Irish Invaded Canada: The Incredible True Story of the Civil War Veterans Who Fought for Ireland's Freedom