[4] They also edited The Encyclopedia of Celtic Wisdom (2000), devised the Storyworld series (2009) and, most recently, created The Steampunk Tarot: Gods of the Machine (2012).
John Matthews (born 1948) has been involved in study of the mysteries of Britain including the Arthurian Legends and the Grail Myth, for almost fifty years.
He has also published short stories, a volume of poetry, and several children's books, most notably Pirates (2006) which was on the New York Times best-seller list for twenty-two weeks.
[12] He has taught throughout Europe and the United States[13] and has acted as advisor for a number of media projects including the Jerry Bruckheimer film "King Arthur" (2004).
[19] Following the publication of The Western Way she has written over sixty books including several works on the divine feminine, and the worlds of early Welsh and Irish literature.
[22] Ronald Hutton, commenting on Caitlín Matthews' works, states that she "falls below the standards required of a professional historian.