Gessica De Angelis works at the Centre for Language and Communication Studies, Trinity College, Dublin, Ireland. Her research focuses on multilingualism, language education, and second/third language acquisition. Her publications include New Trends in Crosslinguistic Influence and Multilingualism Research (2011, co-edited with J-M. Dewaele) and Third or Additional Language Acquisition (2007).

Jean-Marc Dewaele is Professor of Applied Linguistics and Multilingualism at Birkbeck, University of London. He has published widely on individual differences in Second Language Acquisition and Multilingualism. He is president of the European Second Language Association (2007-2011), Convenor of the AILA Research Network Multilingualism: Acquisition and Use (2005-2011) and Executive Committee member of the International Association of Multilingualism (2005-2011).