This book contains eight studies on Functional Discourse Grammar (FDG), with work by FDG's foremost proponents, who provide both an introduction to the theory and a glimpse of current research projects. FDG derives its name from taking the discourse act as the basic unit of linguistic analysis. Each such unit receives four paralle analyses displaying its interpersonal, representational, morphosyntactic and phonological characteristics respectively. What is striking about the emergence of FDG is that it enters into lively debate with various other contemporary frameworks that share its functionalist orientation. This facet of FDG is highlighted in this book, every chapter of which brings out the interconnectedness of current theoretical trends.