Children acquiring two languages, either simultaneously or sequentially, have more variation in their linguistic input than their monolingual peers. Understandi

The ability to speak two or more languages is a common human experience, whether for children born into bilingual families, young people enrolled in foreign lan

This book pioneers the study of bilingualism across the lifespan and in all its diverse forms. In framing the newest research within a lifespan perspective, the

In the first decade of life, children become bilingual in different language learning environments. Many children start learning two languages from birth (Bilin

An authoritative overview of research into heritage language acquisition, covering key terminological and empirical issues, theoretical approaches, and research