This landmark study examines the role of gestures in relation to speech and thought. Leading scholars, including psychologists, linguists and anthropologists, offer state-of-the-art analyses to demonstrate that gestures are not merely an embellishment of speech but are integral parts of language itself. Language and Gesture offers a wide range of theoretical approaches, with emphasis not simply on behavioural descriptions but also on the underlying processes. The book has strong cross-linguistic and cross-cultural components, examining gestures by speakers of Mayan, Australian, East Asian as well as English and other European languages. The content is diverse including chapters on gestures during aphasia and severe stuttering, the first emergence of speech-gesture combinations of children, and a section on sign language. In a rapidly growing field of study this volume opens up the agenda for research into a new approach to understanding language, thought and society.