Book excerpt: This volume explores the implications of Chinese for linguistic theory building and for the field of second language acquisition. Bringing together selected papers from the first International Symposium on Chinese Theoretical and Applied Linguistics, it sheds light upon under-documented topics in a variety of areas within theoretical and applied research. The topics covered here include competing approaches within optimality theory to phonological opacity, formal solutions to puzzles in Shanghainese morphosyntax, and different approaches to polarity items and presentational sentences in Chinese. With regard to applied linguistics, the contributions in this volume address challenges in the acquisition of Chinese phonology by L1 Danish speakers as well as the acquisition of the Mandarin ba construction by Cantonese learners, and the expression of social judgements in the L1 and L2. Taken together, the papers in this volume contribute to the empirical documentation of aspects of the Chinese language and its acquisition, as well as helping to unpack the significance of Chinese for mainstream linguistic theory.