Book Summary: Phonemic awareness and phonetic skill are the backbones of phonological theory. In phonological acquisition, the presence or lack of the former crucially determines the outcome of the latter. This inescapably becomes a common thread that interweaves developmental phonology in both childhood and adulthood. Child and adult-learner speech in the course of development constitute separate linguistic systems in their own right: they are intermediate states whose endpoint is, or ought to be, mastery of targeted speech either in a first or a second language. These intermediate states form the theme of this volume which introduces the term protolanguage (to refer to child language in development) and juxtaposes it with interlanguage (t...