(penultimate means, next to last day. antepenultimate means, the day before the next-to-last day.)
Read Gesche Joost and Arne Scheuermann, their Design as Rhetoric: Basic Principles for Design Rhetoric (Paper, Symposium of Swiss Design Network, 2007). The laser printer didn't cooperate when I sought to print a larger size, so you'll have to squint.
The paper is available through Joost's website, here — scroll down, right side — or directly here.
I will supply pages from Aristotle's Art of Rhetoric, and (maybe) of Plato's dialogue Phaedrus, and go through them with you. We may also consider — as our final read? — Gui Bonsiepe, his "visual-verbal rhetoric."