The modes of persuasion, often referred to as ethical strategies or rhetorical appeals, are devices in rhetoric that classify the speaker's appeal to the audience. The three modes are ethos, pathos, and logos. Ethos is the appeal to the authority or credibility of the presenter. It is how well the presenter convinces the audience that he or she is qualified to present on the particular subject. It can be done in many ways: By being a notable figure in the field in question, such as a college professor or an executive of a company whose business is related to the presenter's topic. By demonstrating mastery of the argot of the field. By being introduced by, or producing bona fides from, other established authorities. Pathos is an appeal to the audience's emotions, and the terms sympathy, pathetic, and empathy are derived from it. It can be in the form of metaphor, simile, a passionate delivery, or even a simple claim that a matter is unjust. Pathos can be parti...