Christos Ziakis is a Visiting Lecturer in Digital Marketing and E-Business at the Department of Applied Informatics, University of Macedonia, Greece. He received his Ph.D. in Digital Marketing and E-Business from the University of Macedonia in 2020. His academic and professional experience spans digital strategy, data analytics, marketing automation, and technology-driven entrepreneurship. His research interests include digital transformation, customer engagement analytics, AI-mediated consumer behavior, and data-driven growth models in digital platforms. He has published in international peer-reviewed journals and edited volumes and has participated in European research and innovation projects.