Al Ridenour is the author of the only English-language book on Krampus history and folklore, The Krampus and the Old, Dark Christmas. He has lectured on this (and related) topics at the international Goethe-Institut, The San Diego Art Institute, New Americans Museum, Tucson Museum of Modern Art, The Bowers Museum, and in the UK at London's Last Tuesday Society and Whitby's Winter Ghosts conference. He discusses dark folklore topics similar to the Krampus in his bi-monthly podcast Bone and Sickle.