Its most ambitious venture is the publication of a County History and Society series, which will endeavour to assemble a library of county histories for all of Ireland. To date twenty-one counties are now completed. The most recent volume is Longford: History & Society.

Each volume in this series, by incorporating the work of outsider and insider, builds up comprehensive insights into the respective study areas. The individual books comprise a collection of specialist essays arranged chronologically and based wherever possible on the entity of the county. The volumes are profusely illustrated with maps and photographs.

Our History and Biography Series contains a vast array of books such as The Queen’s Last Map-Maker: Richard Bartlett in Ireland 1600-3, John O’Leary: A study in Irish Separatism and The Golden Vale of Ivowen. Biographies cover major figures in Irish history such Thomas Davis, Daniel O’Connell, Fr John Murphy of Boolavogue, Maurice Davin First President of the GAA and John Sadleir M.P.