The Proceedings of the UBC Conference on Phonological Acquisition contain 23 papers from the conference, organized into sections on feature acquisition, prosodic structure acquisition, interactions of prosodic and segmental tiers in acquisition, and instrumentation in phonological analysis. The volume is a significant addition to the literature on phonological acquisition, both in data and in theoretical treatment. The authors consider new data from a number of languages, focusing on the major period of phonological acquisition in production. The intended audience includes phonologists, speech-language pathologists, and phoneticians interested in developmental phonology, disordered phonology, and general theoretical topics in phonology, particularly current theories such as Optimality Theory.