explores research on the second language literacy development of learners aged 5-18. It demonstrates how teachers can interpret such research to facilitate their instructional decision-making and classroom practice. This book examines second language literacy development and identity formation in a globalized world from a sociocultural and sociolinguistic perspective. It discusses the complexity of communicativecompetence and emphasizes thevalue of strong learning support through scaffolded activities that encourage students to express their understanding and insights in meaningful contexts. Examples are taken from real classroom practice and key research studies, and activities encourage reflection and interaction. This book promotes an informed stance for teachers seeking to empower learners as well as themselves as they encounter the rapid changes of the 21st century.