Abstract: Ian Paisley is unique in having founded his own church and party, and led both to success. The Free Presbyterian Church of Ulster (FPCU) now has 150 congregations worldwide. The Democratic Unionist Party (DUP) is now the most popular party in Northern Ireland and, as the leader of the majority unionist population, Paisley has a veto over political developments in the province. This book draws on the author's twenty years of close acquaintance with Paisley's people and on his knowledge of religion and politics in other settings to describe and explain Paisleyism. Paisley's religious identity was an important part of his political appeal to a minority core of unionist voters, but his constant criticism of liberal and ecumenical trends in the major Protestant churches alienated many unionists. However, between 2000 and 2005, those unionists became so frustrated with the British Government's concessions to the Irish Republican movement that they finally set aside their dislike of Paisley's divisive religion and made the DUP the majority unionist party.

Keywords: Ulster unionism, religion, politics, political violence, fundamentalism, Democratic Unionist Party, British Government