4th Pan-Hellenic Conference on Digital Cultural Heritage-Euromed 2021. The conference was held in the autumn of 2021, involving on the one side of the collaboration th UNESCO Chair on Digital Cultural Heritage at the Cyprus University of Techonology and the EU-ERA Chair on Digital Cultural Heiratge and on the other side with the University of West Attica and the Cultural Organization "PERRAIVIA Network" in Greece with which we signed bilateral agreement of collaboration.