The nature of communication -- Channels of human communication -- Kinesic channels of human communication -- The language channel -- Linguistic diversity : Babel and beyond -- Variation within a language -- The psycholinguistics of speaking -- The stream of behaviour : co-ordinating verbal and non-verbal channels -- Conversation as co-operative action -- Conversational structure -- Writing -- Language reception : recognizing spoken and written words -- Language comprehension and memory -- The cognitive neuropsychology of language and communication -- The development of language and communication.