Logos is a rhetorical appeal or mode of persuasion that relies on logical reasoning, evidence, and facts to convince an audience of a particular argument or point of view. The term “logos” comes from the Greek word for “word” or “reason,” and it is one of the three major appeals used in rhetoric, along with ethos (appeal to ethics) and pathos (appeal to emotions). In using logos, an author or speaker might employ strategies such as presenting clear and well-researched data, using logical arguments and syllogisms and using analogies or metaphors to make complex concepts easier to understand. Logos is often used in academic and professional writing, scientific research, and legal arguments.