Definitive treasury of more than 80 traditional Welsh tales includes such favorites as "Elidyr’s Sojourn in Fairy-Land," "Pergrin and the Mermaiden," "A Strange Otter," "Nansi Llwyd and the Dog of Darkness," "The Bride from the Red Lake," "Lowri Dafydd Earns a Purse of Gold," and many more.
Here's a sample of other books in this Dover category
Celtic Fairy Tales by Joseph Jacobs Great folklorist's selection of the finest legendary and folk material from Welsh, Scottish, and Irish sources. 26 medieval and modern stories in all. 46 illustrations.
The Book of Elves and Fairies by Frances Jenkins Olcott Nearly 50 tales and fantasies from Ireland, Scotland, Sweden, China, and other faraway places charmingly tell of elfin mounds, treasures of gold, fairy servants, and sprites of water, wood, and meadow.
Favorite Fairy Tales by Brothers Grimm These 21 unabridged stories include such unforgettable classics as "Snow White," "Sleeping Beauty," "The Golden Goose," "Hansel and Gretel," "Little Red Riding Hood," "Rumpelstiltskin," "Rapunzel," and "Tom Thumb."