Andreas Braun is Research Fellow at the Centre for Research in Primary and Community Care, University of Hertfordshire. He earned his doctorate in 2007 and is a member of the International Association of Multilingualism. During his research career, he has published journal articles and book chapters focusing on language practices of trilingual families with children, incomplete acquisition of heritage languages, education and multiculturalism.

Tony Cline is Co-Director of the CPD Doctorate in Educational Psychology, University College London. His research interests include the education of bilingual children, selective mutism, literacy learning difficulties of bilingual pupils, the education of minority ethnic children in mainly white schools and child language brokering at school.