Professor of Children's Rights and Wellbeing, IOE, UCL's Faculty of Education and Society

International Education Consultant

Monash University

University of Florida

University of Vermont, University Distinguished Professor Emeritus of Special Education

Associate Professor, Department of Special Education, University of Thessaly

Concordia University of Edmonton

Professor, Graduate School of Education, Stanford University

Universität Potsdam

Faculty of Education, University of Cambridge, UK.