Ed Elbers (University of Utrecht): is professor of communication, cognition and culture at Utrecht University, the Netherlands. During the EARLI conference in Budapest in 2007, he and Guida de Abreu founded SIG 21 on Learning and Teaching in Culturally Diverse Settings. Ed Elbers published on interaction in teaching/learning situations, both teacher-pupil interaction and peer interaction. A main research interest of his is cultural and lingustic diversity in schools. He was one of the editors of The Transformation of Learning. Advances in Cultural Historical Activity Theory (Cambridge University Press, 2008).

Tünde Kovač Cerović (University of Belgrade): obtained her PhD in educational psychology from the Faculty of Philosophy in Belgrade, where she had also obtained her first and second degrees. She now teaches at the Faculty of Psychology. From 2005 to 2007 she worked as Senior Advisor for REF, an international organization with Headquarters in Budapest, where she worked on comparative analysis of Roma education. In 2007-8 she held a position of Advisor for Education and Social Policy to the Serbian Deputy Prime Minister. She authored and coauthored many research projects and publications. Since July 2008 she has been holding the position of State Secretary of the Ministry of Education and Science.

Jaan Valsiner (Clark University, Worcester, MA): is a developmental cultural psychologist. He is the founding editor (1995) of the major international journal, Culture & Psychology (Sage) and Editor-in-Chief of Integrative Psychological and Behavioral Sciences (Springer, from 2007). Recipient of Alexander von Humboldt Prize (1995) for his interdisciplinary work on human development.