Mary's short story collection, The China Factory (2012), was nominated for the Guardian First Book Award and shortlisted for an Irish Book Award.
Her first novel, Academy Street (2014), won the Irish Novel of the Year Award and was named overall Irish Book of the Year in 2014. It was shortlisted for the International Literary Award, the Costa First Novel Prize and the EU Prize for Literature, among others, and has been translated into many languages.
Her critically acclaimed second novel, The River Capture (2019) was shortlisted for the Irish Book Awards, the Kerry Novel of the Year and the Dalkey Novel Award.
Mary was a teacher in Dublin for many years and now lives in Galway.
"Costello's writing has the kind of urgency that the great problems demand..." —Anne Enright
Agent: Eleanor Birne