Do Richard Matheson and Morgan Llywelyn write different genres of books than eachother?
Richard Matheson Richard Burton Matheson (February 20, 1926 – June 23, 2013) was an American author and screenwriter, primarily in the fantasy, horror, and science fiction genres. He is best known as the author of "I Am Legend", a 1954 science fiction horror vampire novel that has been adapted for the screen four times, as well as the movie "Somewhere In Time" for which Matheson wrote the screenplay, based on his novel "Bid Time Return". Matheson also wrote 16 television episodes of "The Twilight Zone" for Rod Serling, including "Nightmare at 20,000 Feet" and "Steel".
Welsh mythology Welsh mythology consists of both folk traditions developed in Wales, and traditions developed by the Celtic Britons elsewhere before the end of the first millennium. Like most predominately oral societies found in the prehistoric Britain, Welsh mythology and history was recorded orally by specialists such as druids (Welsh: "derwydd" ). This oral record has been lost or altered as result of outside contact and invasion over the years. Much of this altered mythology and history are preserved in medieval Welsh manuscripts which include the Red Book of Hergest, the White Book of Rhydderch, the Book of Aneirin and the Book of Taliesin. Other works connected to Welsh mythology include the ninth century Latin historical compilation "Historia Brittonum" ("History of the Britons") and Geoffrey of Monmouth's twelfth-century Latin chronicle, "Historia Regum Britanniae" ("History of the Kings of Britain") as well as later folklore such as the 1908 "The Welsh Fairy Book" by William Jenkyn Thomas.