Olesya Kisselev is Assistant Professor in the Department of Languages, Literatures and Cultures at the University of South Carolina, USA. Kisselev’s research expertise lies in the areas of heritage and second language acquisition, language pedagogy and learner corpus research. Her scholarly contributions include research papers and book chapters on linguistic aspects of learner language varieties as well as on language pedagogy. Oksana Laleko is Associate Professor and Director of Linguistics at the State University of New York at New Paltz, USA, and a book reviews editor of the Heritage Language Journal. She is the author of numerous articles and book chapters on formal linguistic, cognitive, and sociolinguistic dimensions of heritage language bilingualism. Irina Dubinina is Professor of Russian and Director of the Russian Language Program in the Department of German, Russian, and Asian Languages and Literature at Brandeis University, USA. Her research focuses on pragmatics of heritage Russian and heritage language pedagogy, which are the topics of her recent publications. Dubinina is an experienced instructor of Russian as a second and a heritage language.