This essay is a description of a rhetorical form/situation using three examples of that form/situation as evidence. Your task is to make a claim about what these three essays represent. For instance, I might look at the three essays I am assigned and decide that they represent the convocation address. My task now is to demonstrate what these three examples of convocation have in common, and how they are representative of this form. That is, it is not enough simply to point out that there are common elements, I have to say something about what those elements are doing and why they matter. That is what makes this essay analysis rather than just summary.