Library With 7 campus libraries, we strive to provide excellent and relevant resources and collections to support the teaching, learning and research needs of the University. ATU Donegal Libraries at Letterkenny and Killybegs. ATU Galway-Mayo Libraries at Galway City (Dublin Rd. & Wellpark Rd.), Mayo and Connemara. ATU Sligo The Yeats library is located on the outskirts of Sligo town.