Michael Hornsby is Head of the Centre for Celtic Studies in the Faculty of English at Adam Mickiewicz University in Poznań, Poland. He is the author of Revitalizing Minority Languages: New Speakers of Breton, Yiddish and Lemko (Palgrave Macmillan, 2015) and co-editor of New Speakers of Minority Languages: Linguistic Ideologies and Practices (Palgrave Macmillan, 2017).Wilson McLeod is Professor of Gaelic at the University of Edinburgh, UK. He is the author of Gaelic in Scotland: Policies, Movements, Ideologies (2020) and co-editor of Language Revitalisation and Social Transformation (Palgrave Macmillan, 2021).