This document discusses rhetoric and communication theories. It provides an overview of different traditions in the field of communication studies, including cybernetics, phenomenology, sociocultural studies, semiotics, and rhetoric. Rhetoric is broadly defined as human symbol use and the process of adjusting ideas and people through messages. The five canons of rhetoric from ancient Greece - invention, arrangement, style, delivery, and memory - are examined and given contemporary interpretations related to conceptualization, organization, meaning assignment, relationships, context, interpretation, and cultural memory. The document then discusses images and photography, how photographs capture meaning and have their own symbolic language and rhetoric.