This series contains manuscripts and drafts of Larkin’s books and translations, as well as research materials and notes for those books. Also included here is correspondence pertaining to the books’ publication and regarding Larkin’s research. This series contains thirteen entries: one for each of the twelve published books, and a final one containing notes, research materials, and drafts for a book on the Devotional Revolution in Ireland, which was left incomplete at the time of Larkin’s death.