A magician, mage, sorcerer, wizard, or a person known under one of many other possible terms in fiction is someone who uses or practices magic that derives from supernatural or occult sources. Magicians are common figures in works of fantasy, such as fantasy literature and role-playing games; they draw on a history of such people in mythology, legends, and folklore (see Magician (paranormal)). Although occasional practitioners of sleight-of-hand appear in modern fantasy, they are usually simulating the magic that others perform—or sometimes concealing their actual magic. Leprechaun (Irish: leipreachán) is a type of fairy in Irish folklore, usually taking the form of an old man, clad in a red or green coat, who enjoys partaking in mischief. Like other fairy creatures, leprechauns have been linked to the Tuatha Dé Danann of Irish mythology. Popular depiction shows them as being no taller than a small child.