Books about Mythology, Celtic -- Ireland

The Ancient Irish Epic Tale Táin Bó Cúalnge

Gods and Fighting Men

Old Celtic Romances

The high deeds of Finn, and other bardic romances of ancient Ireland

Irish Wonders

The Coming of Cuculain

Le cycle mythologique irlandais et la mythologie celtique (French)

Heroic Romances of Ireland, Translated into English Prose and Verse — Complete

Legendary Heroes of Ireland

The Táin

Heroic Romances of Ireland, Translated into English Prose and Verse — Volume 1

Heroic Romances of Ireland, Translated into English Prose and Verse — Volume 2