This book is a collection of compound sentence studies compiled after the International Symposium on Compound Sentences, including some papers of the compound sentence seminar and some papers of the compound sentence research outside the conference, a total of 40 papers. The research content includes modern Chinese compound sentences, dialect compound sentences, ancient Chinese compound sentences, ethnic language compound sentences, foreign language compound sentences, cross-language compound sentence comparison, compound sentence typology, compound sentence information processing and other issues, and the research paradigm includes traditional linguistics and modern and contemporary linguistics and their combination. The research orientation includes functionalism and formalism and their integration, and some articles have introduced, reviewed and explained some important compound sentence research results. The book generally reflects the latest academic trends and achievements of domestic and foreign scholars on the problem of compound sentences and related issues. This book is intended for linguistic enthusiasts, learners, and researchers.