Book excerpt: Ireland's bestselling popular historian tells the story of contemporary Ireland - controversial, authoritative and highly readable. Tim Pat Coogan's biographies of Michael Collins and DeValera and his studies of the IRA, the Troubles and the Irish Diaspora have transformed our understanding of contemporary Ireland, and all have been massive bestsellers. Now he has produced a major history of Ireland in the twentieth century. Covering both South and North and dealing with cultural and social history as well as political, this enthralling work will become the definitive single-volume account of the making of modern Ireland.