The language policy discussed in this book is one of the hot topics of academic debate. This book aims to approach the study of language policy from linguistic theories, discussing issues such functions, systems, hierarchies, environments and coverage of language policy from a new perspective, and drawing applicable conclusions that can guide the practice of language policy. Through the application of theories and the formulation of feasible recommendations, it aims to bridge the difference in views and gaps in understandings between academic and practical worlds to serve real-life language policy.

Wang Rui holds a PhD degree and his research interests are translation theories and practical applicable linguistics.