The Irish Political Studies Data Yearbook is an annual register of core political data covering the Republic of Ireland and Northern Ireland. It constitutes an important time series of data on Irish politics. This includes members of governments, state of the parties in parliament, parliamentary committees, register of legislative acts with summaries of their content, all election results, extensive opinion poll data, party membership and a detailed chronology of the main political events of the year.

The second edition of this popular text provides a comprehensive introduction to the main research methods employed in the study of politics and assessment of their strengths and limitations and of ethical issues in research. It has been revised and updated throughout, and a new chapter considers the relationship between research and policy.