Eve Clark argues for the centrality of the lexicon in language and language acquisition. She looks at the hypotheses children draw on about possible word meanings, and how they map their meanings onto forms. Starting with children"s emerging knowledge of conventional words and meanings, she takes up their growing knowledge of word structure as reflected in their formation of new words. The Lexicon in Acquisition synthesizes Professor Clark"s widely respected work in the field, and will interest linguists, psychologists, and cognitive scientists.