Tolkien's The Lord of the Rings (1954-1958), became astoundingly popular and was much imitated. In the 1960s and afterwards, elves similar to those in Tolkien's novels became staple non-human characters in high fantasy works and in fantasy role-playing games (RPGs).
The elves of Norse mythology have survived into folklore mainly as females. The lvor (Swedish, singular lva) were stunningly beautiful girls who lived in the forest with an elven king. They were long-lived and light-hearted in nature. They could be seen at night dancing over meadows. The circles they left were called lvdanser (elf dances) or lvringar (elf circles). If a human watched their dance, he would discover that even though only a few hours seemed to have passed, many years had passed in the real world. (This time phenomenon is retold in Tolkien's Lord of the Rings when the Fellowship of the Ring discovers that time seems to have run more slowly in elven Lothlrien. It also has a remote parallell in the Irish sdhe).
Modern fantasy literature has revived the elves as a race distinct from fairies. Fantasy elves are different from Norse elves, but are more akin to that older mythology and to the Irish sdhe than to folktale elves.Christopher Paolini's Eragon also features elves of a Nordic persuasion.English folktales of the early modern period typically portray elves as small, elusive people with mischievous personalities (see illustration). They are not evil but might annoy humans or interfere in their affairs. They are sometimes said to be invisible. In this tradition, elves became more or less synonymous with the fairies that originated from native British mythology, for example, the Welsh Ellyll (plural Ellyllon) and Y Dynon Bach Tg.Tolkien's elves were enemies of goblins and orcs and had a longstanding quarrel with the dwarves: these motifs also often reappear in Tolkien-inspired works. In gaming, and to some extent fantasy, elves have a great depth of knowledge (especially regarding magic) due to a racial inclination as well as their extreme age. There are also "dark elves" popularized by TSR as drow.The Discworld novels by Terry Pratchett feature extradimensional creatures called elves, that go back to the old myths of cradle-robbing fairies. The book Lords and Ladies is about an encounter with "the fair folk".In 1954, Poul Anderson introduced grim Norse-style elves in his fantasy novel The Broken Sword and made them full-sized.Tad Williams's Memory, Sorrow, and Thorn trilogy focuses heavily on a long-lived, fair-skinned, magical race known as the Sithi, which are described as elves in all but name.In the Nordic countries where elves have since become associated with Christmas, elves are clad all in red and have long beards and black boots. On Christmas Eve, one must give the elves a bowl of porridge to keep them from playing pranks. In Iceland, from December 12 until Christmas Eve, thirteen elves called the Yule lads visit homes, a lad each day for 13 days, and play tricks on the children, as well as leaving presents for them.Little documentation exists on English rustic beliefs and terminology before the nineteenth century, but it seems that the term elf was used, at least on some occasions or in some places, for various kinds of uncanny wights, either human-sized or smaller. But other terms were also used.
