Dr Mat Santamouris is Professor of Energy Physics at the University of Athens. He is Associate Editor of the Solar Energy Journal and Member of the Editorial Board of the International Journal of Solar Energy, Journal of Energy and Buildings, Journal of Sustainable Energy, and of the Journal of Ventilation. He is Editor of the Series of Book on Buildings, Energy and Solar Technologies published by James and James Science Publishers in London. He has published 9 international books on topics related to solar energy and energy conservation in buildings. He is guest editor of eight special issues of various scientific journals. He has coordinated many international research programs and he is author of almost 130 scientific papers published in international scientific journals. He is visiting professor at the Metropolitan University of London.