Madalena Cruz-Ferreira is a multilingual scholar, educator and parent, with publications on child and adult multilingualism in the home, in school and in clinic spanning nearly 40 years. She holds a PhD in Linguistics from the University of Manchester, UK, and is the author of Three is a Crowd? (Multilingual Matters), Multilinguals are ...? (Battlebridge Publications), Multilingual Norms (Peter Lang) and The Language of Language (CreateSpace). Publications online include her blog Being Multilingual and her Lang101–Linguistics for Starters resources for students and instructors.