Pronunciation is an aspect of proficiency on which most second-language (L2) learners have ready views and, sometimes, clear motivations-possibly because they are aware from their primary language experience of the social dimensions of accent. Yet the scientific study of the structures and processes of speech in second-language learning, once quite prominent (see, e.g., Lado, 1957Lado, , 1961, now seems comparatively underrepresented: While phonology is one of the liveliest areas of contemporary theoretical linguistic inquiry, phonological investigation of second-language acquisition trails in quantitative terms behind research on syntax, discourse, and pragmatics (Major, 1998a, p. 131). One reason for this is that for many learners intelligibility in spontaneous speech is a sufficient goal, and as this is usually favored by the pragmatic context of comprehension there may be little incentive to reduce foreign accent. But to learners, teachers, and researchers who are interested in the sound patterning of the L2, syntax, morphology, and lexis may remain more accessible (through orthography) than phonetic and phonological variables. Furthermore, the abstractness and technicality of contemporary phonological models, not to mention the specialized skills required for the phonetic analyses I am grateful to three anonymous reviewers for their helpful comments on an earlier version of this chapter, and to Alister Cumming for editorial suggestions and advice.