This book brings together theoretical, practical, and clinical knowledge from several disciplines that bear on language and communication in an accessible form. Contributions from education, linguistics, psychology, pediatrics, psychiatry, neurology, neuropsychology, and speech therapy are included. They describe language development, suggest classifications for language pathology, outline the epidemiology of language difficulties, consider assessment and therapy, alternative communication systems and the impact of technology on communication aids. The variety of perspectives that it provides will make it particularly useful to the range of specialists who are concerned with the development of communication skills and language disorders.