George Nikolaou studied Education Sciences in Greece and France. He defended his doctoral dissertation in 1999, at the University of Athens. He taught at all levels of education in Greece and France and served as Assistant Professor of Intercultural Education at the Pedagogical Institute. From September 2001 to May 2015 he served as a Faculty Member with the subject of Intercultural Pedagogy at the Pedagogical Department of Primary Education of the University of Ioannina. Since May 2015 he has been serving as an Associate Professor of Intercultural Pedagogy at the University of Patras.

He has collaborated with the Open and the European University of Cyprus. He has published three monographs, has participated in many conferences in Greece and abroad, while his articles have been published in scientific journals in Greece and abroad.