By Deborah Hayden, OG(H)AM’s Irish Co-Investigator In a previous blog on this site, I introduced some of the cryptic varieties of ogam illustrated in the visually impressive tract known as In Lebor Ogaim (‘The Book of Ogam’), the earliest copy of which is preserved in the fourteenth-century manuscript known as ‘The Book of Ballymote’ (RIA… Continue reading Literary Attributions in ‘The Book of Ogam’