This volume is the first published collection of papers on the impact of diglossia and dialectal variations on language and literacy acquisition, impairment, and education. The authors are pioneering in this field and are leading researchers with substantial experience in conducting research in this area. A wide range of areas and languages are covered, including the US, South Africa, Israel, and various European countries. The chapters present novel data and insights regarding the role of dialectal variations on language and literacy, from a wide range of countries and perspectives. These...