The document discusses several models of persuasion and behavior change communication. It summarizes McGuire's 6-step model of persuasion, Fishbein and Ajzen's Theory of Reasoned Action, Fishbein's Integrated Model of Behavior Change, and cautions that the relative influence of attitudes, norms, and self-efficacy can depend on the behavior and population. It also notes that communication theories are needed to design effective messages to influence those determinants of behavior.