Book excerpt: A work that will be of interest to those interested in typology, language history, and contact induced change, this book documents the radical restructuring of Anong over the last 40 years under intense contact with Lisu. In the almost fifty years, Sun Hongkai has been documenting the Anong language of Yunnan China, it has undergone radical, contact-induced changes. The language of the less than forty remaining speakers is quite different than the Anong of forty years ago. Under intense contact with Lisu, major change has occurred in the language, much of it documented in this work of Sun's. The English edition is a reworking of the original Chinese version, providing annotation, an expanded lexicon, and an appendix that contains an instrumental study of the language.