This volume reflects a consensus that the investigation of words in the mind offers a unique opportunity to understand both human language ability and general human cognition. It brings together key perspectives on the fundamental nature of the representation and processing of words in the mind. This thematic volume covers a wide range of views on the fundamental nature of representation and processing of words in the mind and a range of views on the investigative techniques that are most likely to reveal that nature. It provides an overview of issues and developments in the field. It uncovers the processes of word recognition. It develops new models of lexical processing.