It is a great pleasure to see this work published, making available some of the most refreshing studies on Byzantine philosophy available, together in one volume. The 24 essays collected here treat diverse topics, from ontology to questions of iconicity, from historically oriented studies to nuanced philosophical observations on Proclus, Christian Neoplatonism, Aquinas and Gregory Palamas, from Leontius of Byzantium to John Philoponus and Nicolas Cabasilas and his sacramental synthesis, from anthropology or hierarchies of beings of Gregory of Nyssa and Dionysius the Areopagite to Christology after Chalcedon, from John of Damascus on genus and species to Scholarios and Pletho. Each of them is characterized by meticulous scholarship and great insight, clarity of thought and expression.