The introductory chapter presents an overview of the book with key notions and theoretical approaches employed in the study. The noteworthy feature of the study is the integration of discourse analysis and grammatical analysis to describe how discourse and syntax influence each other and further develop the RRG theory of the syntax–semantics–discourse interface, and the inclusion of L2 discourse analysis, as well as L1 discourse, to demonstrate the relevance of L2 analysis to issues outside traditional second-language research.