With more than 300 entries, these two volumes provide a one-stop source for a comprehensive overview of communication theory, offering current descriptions of theories as well as the background issues and concepts that comprise these theories. This is the first resource to summarize, in one place, the diversity of theory in the communication field.Key ThemesApplications and ContextsCritical OrientationsCultural OrientationsCybernetic and Systems OrientationsFeminist OrientationsGroup and Organizational ConceptsInformation, Media, and Communication TechnologyInternational and Global ConceptsInterpersonal ConceptsNon-Western OrientationsParadigms, Traditions, and SchoolsPhilosophical OrientationsPsycho-Cognitive OrientationsRhetorical OrientationsSemiotic, Linguistic, and Discursive OrientationsSocial/Interactional OrientationsTheory, Metatheory, Methodology, and Inquiry