This state-of-the-art handbook reviews the latest advances in theory, research, and practice in language and literacy development. The close connections between language and literacy processes--both typical and atypical--are thoroughly explored in chapters from leading authorities in communication sciences and disorders, learning disabilities, and literacy education. The first three sections cover the cognitive and neurological underpinnings of language and literacy development and disorders; the sociocultural contexts of learning, including ways to promote success in students at risk; and how specific language skills are related to successful and unsuccessful literacy acquisition. Building on these foundations, the final section then reviews effective applications for children, adolescents, and young adults with varying language and literacy profiles. Research-based strategies are presented for assessing student needs and providing effective instruction in all aspects