Motif-index of Folk-literature: A Classification of Narrative Elements in Folktales, Ballads, Myths, Fables, Mediaeval Romances, Exempla, Fabliaux, Jest-books, and Local Legends, Volume 1

This index is organized by motif, or subject, so related versions of particular stories are classified together, across cultures and time periods. Very detailed, with source citations, is a classic work of its type.