“The Cathars: Duelist Heretics in the Languedoc in the High Middle Ages”, Malcolm Barber, Longman, 2000

“Gods Heretics; the Albigensian Crusade”, Aubrey Burl, Sutton Publishing, 2002

“The Cathars and the Albigensian Crusade”, Michael Costen, Manchester University Press, 1997

“Cathar Castles, Fortresses of the Albigensian Crusade 1209-1300”, Marcus Cowper, Osprey Publishing Limited, 2006

“Heretic Lives”, Michael Frassetto, Profile Books Ltd., 2007

“Montaillou: Cathars and Catholics in a French Village”, Emmanuel Le Roy Laudrie, Penguin, 1978

“Montsegur and the Mystery of the Cathars”, Jean Markale, Inner Traditions, 2003

“The Cathars”, Sean Martin, Chartwell Books, Inc., 2006

“Massacre at Montsegur”, Zoe Oldenbourg, Weidenfeld & Nicolson, 1961

“Crusade Against the Grail”, Otto Rahn, Inner Traditions, 2006

“Lucifer’s Court”, Otto Rahn, Inner Traditions, 2008

“The Land of the Cathars”, Georges Serrou, Editions Loubatieres, 1990

“The Albigensian Crusades”, Joseph R. Strayer, University of Michigan Press, 1992

“The Albigensian Crusade”, Johnathan Sumption, Faber & Faber, 1978

“The Yellow Cross – The Story of the Last Cathars Rebellion Against the Inquisition”, Rene Weiss, Vintage Books, 2002

Fiction on a historical backdrop

“High are the Mountains”, Hannah Closs, The Vanguard Press, Inc., 1959

“Deep are the Valleys”, Hannah Closs, The vanguard Press, Inc., 1978

“The Silent Tarn”, Hannah Closs, The Vanguard Press, Inc., 1963

“The Fire and the Light”, Glen Craney, Brigid’s Fire Press, 2008

“The Unknown Master of the Albegenses”, Maurice Magre, Sphere Books Limited, 1975

“The Blood of Toulouse”, Maurice Magre, Editions de Rocher, 2003

“Labryinth”, Kate Mosse, The Berkley Publishing Group, 2005

“Destiny of Fire”, Zoe Oldenbourg, Carrol & Graf Publishers, Inc., 1999

“The Cornerstone”, Zoe Oldenbourg, Pantheon Books Inc., 1955