Chapter 16 discusses persuasive public speaking, emphasizing the importance of speaker credibility (ethos), logical arguments (logos), and psychological appeals (pathos) in crafting an effective speech. It outlines the components of persuasive speeches, various logical fallacies to avoid, and methods to effectively present one's point of view. Additionally, it introduces models like Monroe's motivated sequence and factors that influence audience persuasion such as social support and individual norms.