Book excerpt: The Routledge Handbook of Portuguese Phonology provides an up-to-date description of the Portuguese phonological system, including a thorough account of the fundamental concepts, data, and previous explanations, as well as the status quaestionis, directions for future research, and further reading. Divided into five parts with contributions from leading international scholars and rising stars, the book’s 23 chapters provide a thorough account of the Portuguese sound system and a range of perspectives on Portuguese phonology. This is the most comprehensive volume on Portuguese phonology written in English, and it delves into the most pressing issues and challenges regarding a wide variety of topics, such as segmental and suprasegmental phenomena; aspects concerning the interfaces between phonology and other linguistic domains; and issues on synchronic variation, diachronic change, acquisition, and the teaching of Portuguese speech prosody to non-native learners. This in-depth resource will be invaluable for researchers and advanced students of Portuguese language and linguistics, as well as those interested in phonology and linguistics more broadly.