Marek Titien Olszewski is Associate Professor, PhD from the Sorbonne, lecturer at the Institute of Archaeology, University of Warsaw, specialist in Roman archaeology and iconography, and an expert on ancient mosaics, Roman archaeology and Syria (UNESCO). He sits on the board of the AIEMA (Association Internationale pour l’Etude de la Mosaïque Antiqua).

Houmam Saad has a PhD in archaeology and is on the staff of the Directorate General of Antiquities and Museums of Syria (DGAMS). He is also an associate of the French Academy of Sciences (CNRS) and a specialist in the archaeology of Syria.