This course provides an overview of language development in infancy and childhood, from birth through the preschool years. We will go over milestones and content of what children acquire including phonological, semantic, and syntactic skills. The main focus will be on typical monolingual development, we will also explore language development in children growing up with bilingual and multilingual backgrounds as well as with speech and other communicative issues. We will cover methodological as well as theoretical issues around language development in early years. The implications of research findings in education will also be discussed.