Thomas Keightley (1789–1872) was an Irish writer best known for his works on mythology and folklore. Fairy Mythology published in 1928 gained the world popularity and was reprinted as The World Guide to Gnomes, Fairies, Elves, and Other Little People. Regarded as a pioneer in the study of Folklore by modern scholars in the field, he was one of the early collectors of folklore. Stories and fairy tales about unknown and mysterious creatures named Leprechauns were always one of the major topics of discussion. Some say and proved their existence, another say that it is only a mythological creatures and were created for spending time during long and pleasant evenings. Read this marvelous book and make your own mind about them.