Sean Martin is the author of the bestselling The Knights Templar: The History and Myths of the Legendary Military Order (revised paperback edition, 2009), and has appeared in a number of Templar-related TV programmes, including The Trial of the Knights Templar (Channel 5) and The Templars' Lost Treasure (National Geographic).
His other books include The Gnostics: The First Christian Heretics (now out in a revised paperback edition, 2010), The Cathars: The Most Successful Heresy of the Middle Ages (2005) and Andrei Tarkovsky (new edition, 2011), a study of the great Russian director.
He is also a filmmaker, and co-directed the documentary Lanterna Magicka: Bill Douglas and the Secret History of Cinema (2009, released on DVD and Blu-Ray by the BFI) and the forthcoming feature film Folie à Deux. He lives in Edinburgh.
