A historical study of the most influential and important Protestant group in Northern Ireland - the Ulster Presbyterians. Andrew R. Holmes argues that to understand Ulster Presbyterianism is to begin to understand the character of Ulster Protestantism more generally and the relationship between religion and identity in present-day Northern Ireland. He examines the various components of public and private religiosity and how these were influenced by religious concerns, economic and social changes, and cultural developments. He takes the religious beliefs and practices of the laity seriously in their own right, and thus allows for a better understanding of the Presbyterian community more generally.