Class Struggle in the Roman Republic

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

Spain’s revolution against Franco: The great betrayal

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

The History of Philosophy: A Marxist Perspective

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

Marxism and the USA

Bolshevism: The Road to Revolution

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

The Ideas of Karl Marx: Marx at 200

The Crooked Branch

The First World War – A Marxist Analysis of the Great Slaughter

The Outside Boy

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

In Defence of Lenin

The History of Ireland

Lenin and Trotsky – What they really stood for

Secret Child

What is Marxism?: An Introduction to Marxist Theory