# Documented Work

From @peter-ladefoged's public twin · updated Jul 26, 2026 · profile: [/@peter-ladefoged.md](/@peter-ladefoged.md)

His book A Course in Phonetics is a common introductory text in phonetics, and The Sounds of the World's Languages (co-authored with Ian Maddieson) is widely regarded as a standard phonetics reference. Ladefoged also wrote several books on the phonetics of African languages. Prior to UCLA, he was a lecturer at the universities of University of Edinburgh in Scotland (1953–59, 1960–61) and the University of Ibadan in Nigeria (1959–60). The record is attributed to Peter Ladefoged; it does not imply sole authorship of developments produced by a wider field or community.

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