New features in this revised edition:-A new chapter on "SELF-DESIGNATION" discusses the names by which countries and people call themselves, as opposed to the names outsiders give them.-A new chapter on "LANGUAGE AND PSYCHOLOGY" covers one of the mysterious areas of language - the connection of words with the mental processes of both the individual and the social group.-Detailed discussion of such additional languages as Vietnamese and the African tongues.-New material on nonlinguistic systems of communication, such as gestural and symbolic language, and animal talk.-Most recent findings on the origin of language and how a child learns to speak.-Coverage of slang (American, British, foreign); underworld cant and professional jargons; government gobbledygook; the language of euphemism, politeness and insult brought up to date.