Which form of persuasive communication involves using memorable phrases to encourage action?

Slogans are short, memorable phrases that encapsulate a key message or idea, making them particularly effective in persuasive communication. These phrases are crafted to evoke an emotional response or motivate action, often by highlighting a compelling benefit or call to action. Their simplicity and catchiness help them stick in the minds of the audience, making it more likely that they will take the desired step, whether that's buying a product, supporting a cause, or changing a behavior.

In the context of persuasive communication, slogans are designed to be easily remembered and repeated, which amplifies their impact. This memorability is crucial for campaigns aiming to promote ideas or products quickly and efficiently. They serve as a rallying cry or a succinct summary of the larger message, facilitating engagement and action from the audience.