Ethos, pathos and logos are the rhetorical appeals defined by aristotle, also referred to as the modes of persuasion.
As an example, i would look to the ancient story of beowulf, which is about a heroic man who puts his life in harm's way to save others from a monster— grendel. Ethos, pathos and logos are different methods of persuasion read on to discover their meanings and see examples of all three.
He described three main forms of rhetoric: ethos, logos, and pathos in order to be a more effective writer and speaker, you must understand these three terms.
Ethos appeal, beowulf is rather trustworthy to hrothgar now, and his persuasion is shelter and food logos and pathos to affect and convince their audience. In beowulf's appeal to unferth, beowulf uses pathos when referring to his swimming match against brecca beowulf makes the audience feel.
Teaching the classic rhetorical appeals is always a bit of a devil's bargain -- that is the knowledge of the appeals is, in and of itself, essential to cultural literacy.