Gonzalo Vinuales FerreiroL. Alberto Polo Romero has been a Lecturer in Archaeology at Rey Juan Carlos University of Madrid since 2017, specialising in prehistory. He holds a BA from Complutense University of Madrid and a Teacher Training Masters from Rey Juan Carlos Universiy of Madrid. His research has investigated the first metallurgic societies between the third and the first millenium BC and processes of continuity and change associated with climatic changes. Gonzalo Vinuales Ferreiro has been Professor of Medieval History at Rey Juan Carlos University in Madrid (Spain) since 2005. He has a PhD in History from the National University of Distance Education (Extraordinary Prize). His current lines of research include the relations between Moors and Jews during the Middle Ages in Castile, the study of Castilian Benedictine monasteries in the late Middle Ages, and that of historical graffiti in Spain. Francisco Reyes Tellez is a Senior Lecturer of Archaeology at Rey Juan Carlos University, Madrid, Spain. He is a Coordinator of the Research Group HASTHGAR-URJC. He has published, alone or in collaboration, fifteen books and more than one hundred articles. His books include Silos: un recorrido por su proceso constructivo (1999) and La catedral de Burgos: una vanguardia artistica medieval (2001). Read More Read Less