Christalla Demetriades, (Talla) graduated with a degree in Medieval Ecclesiastical History and went on to work in publishing. Talla has lived and worked in the UK, Australia, Cyprus and Guatemala. Talla has built a house on the side of a volcano in Gutamala to spend the winter in. Talla has traveled extensively and is an experienced, enthusiastic and popular tour leader. Talla has led tours to China, India, Argentina, Mexico, Guatemala (many times) and on a Mediterranean Cruise.