The study of communication is a multidisciplinary effort to understand the constant, varied, and complex transmission and exchange of information, knowledge, and ideas. The extensive nature of communication means that efforts to study it span multiple epistemologies and methodologies. Also, given the changing media landscape, scholars and professionals must constantly consider new content, technologies, processes and effects, and theories of communication. The overlapping domains of communication make it challenging to stay informed about every applicable area. A great deal of this work has moved online with the most recent scholarship, research, and statistics appearing in online databases. Oxford Bibliographies in Communication will provide much-needed guidance for students and scholars at every level.