Merlin, best known to us as the advisor of young King Arthur, is the most famous and familiar image of the magician that we possess. Acclaimed Arthurian expert John Matthews examines the many guises of this popular figure—as seer, prophet, magician, and inspiration to people from all walks of life. He explores the possible historic origins of Merlin as a Celtic king, the later literary forms of his legend in the myths of King Arthur, and his more recent manifestations in visionary works, as the prototype for characters such as Obi-Wan Kenobi in the Star Wars films, and other characters in TV and fantasy writing. Drawing on a wealth of sources from Celtic, medieval, and Renaissance times, this is the first, fully-illustrated book on Merlin, the man.