George Papaioannou holds a PhD in Social Morphology (Panteion University). From 2018 to 2021 he was a postdoctoral researcher under the supervision of prof. I. Psimmenos. He specializes in social networks analysis in historical space-time, namely in periods of change. His first book entitled “Professional communities in Greece: the case of metallurgists in Larymna” was currently published by Papazisis editions (2021).