Merlin remains the most famous and familiar image of the magician we possess. Best known as the advisor of the young King Arthur, he was also a famous seer, whose books of prophecies have been reprinted countless times since the middle ages and are still revived today. He has reappeared in numerous in guises in modern times, in film,TV, and fiction, as well as being often studied as an exponent of shamanism, seership and ancient wisdom. This new book traces the historical origin of Merlin as a Celtic King, the later literary forms of his growing legend in the myths of Arthur, and his more recent manifestations in visionary works, film, TV and fantasy writing. Also explored is the important connection between Merlin and the Druids. Spanning the ages and delving into some of the most colorful corners of human history, it presents a new look at an age-old, perennial character.