The Cathars, a beautifully illustrated volume by the leading author on the subject, unveils the mysteries surrounding the Cathars, their links with the Knights Templar, the Troubadours, and the search for the Holy Grail.

Sean Martin is an Anglo-Irish writer and film director. He has written popular books on the Knights Templar and the Cathars, and appeared on History Channel documentaries such as Decoding the Past: The Templar Code and in Channel 5's Secrets of the Cross: The Trial of the Knights Templar.