Book excerpt: This book is the first edited book to cover a wide range of issues related to Chinese as a second language (CSL) speech, including tone and segment acquisition and processing, categorical perception of tones, CSL fluency, CSL intelligibility/comprehensibility and accentedness, and pronunciation pedagogy. Moreover, the book addresses both theoretical and pedagogical issues. It offers an essential go-to book for anyone who is interested in CSL speech, e.g. CSL speech researchers, Chinese instructors, CSL learners, and anyone interested in second language speech.