Mary Costello is a writer.Mary Costello was born in Galway.Before becoming a full-time author, Costello was a teacher.Costello's work has been serialised on BBC Radio 4. Her first book, the collection "The China Factory," was published in 2012. Her second book, the novel, "Academy Street," was published in 2014, and her second novel "The River Capture" was published in 2019.