This graduate seminar will study theoretical constructs and issues that inform workplace professional communication. Inherently a multi-disciplinary activity, professional communication draws on theories from fields as different as the rhetoric of science, psychology, philosophy, sociology, cultural studies and linguistics. This term we will focus specifically on rhetoric, on the relationships between author, text and reader, and on philosophies of language as they apply to workplace communicative practice. The purpose of this seminar is to explore relevant theories in sufficient depth and detail to do justice to their complexity, and, at the same time to examine their applicability to professional communication. Students will be expected to comprehend and challenge these theories on their own terms as well as to understand their value.