"Celtic literature" is a work of the famous English poet and literary critic Matthew Arnold, dedicated to the collection and analysis of the works of Celtic writers. The book opens to the reader the magical world of ancient Celtic literature, which has preserved a wealth of myths, legends and epic stories. In his work, Arnold examines the influence of Celtic culture on the literary development of the West and indicates the significance of these works for understanding world literature as a whole. "Celtic literature" is not only an educational work, but also an invitation to a journey into the magical thickets of Celtic myths and legends, where the word acquires a special magical sound.