Agnieszka Otwinowska is Assistant Professor at the Institute of English Studies, University of Warsaw, Poland. Her research interests include crosslinguistic influences, bilingual and multilingual language acquisition in children and adults, language teaching, bilingual education and CLIL. She is the co-editor of Teaching and Learning in Multilingual Contexts (with Gessica De Angelis, Multilingual Matters, 2014).

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).