This book examines genres as instances of social processes, enacting a range of important institutional practices, hence also shaping people's subjectivities. Genres represent purposive and staged ways of building means in a culture. The book's particular claim to originality is that, using systemic functional grammar, it demonstrates how given genres build or enact social practice, how educational setting provide contexts in which some apprenticeship into such genres occurs, and how theorizing about such matters helps build a theory of social action, revealing how powerful is the systemic...