Ethos, Logos, and Pathos Find a source that makes an argument relevant to your research topic. This can be about the cause of a problem or a proposed solution to it. Read the argument. Summarize the thesis and any main points. Then identify which persuasive appeals the author makes: ethos, logos, or pathos. Provide examples from your source to illustrate. Note: the source might not have examples of all the persuasive appeals. Just identify which types are present. Make sure to clearly identify the source.