Tadhg Mac Dhonnagáin writes books, screenplays, songs and works mainly in Irish. His creative fiction-style biography of the 19th-century poet and songwriter, Antoine Ó Raiftearaí, Mise Raiftearaí an Fíodóir Focal (I am Raiftearaí, the Word-Weaver) received the premier Irish-language Book of the Year Award in 2015. His songbook/CD Bliain na nAmhrán (The Year of Song) won a Children’s Books Ireland Book of the Year Award. His novel, Madame Lazare, was awarded an An Post Irish Book Award in 2021.
