Module VII·Article III·~1 min read
Visual Rhetoric: The Image as Argument
Digital Rhetoric: Social Media, Disinformation, and Image
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An Image Persuades Differently Than a Word
"A picture is worth a thousand words"—but in a rhetorical sense this is not a compliment, but a danger. The image persuades differently than a verbal argument: instantly, emotionally, without logical structure. This makes visual rhetoric especially powerful—and especially manipulative.
Susan Sontag ("On Photography," 1977; "Regarding the Pain of Others," 2003): photography creates the illusion of objectivity ("the camera does not lie"), but in reality every shot is the result of choices: angle, framing, light, moment. This "realism" is a rhetorical effect.
"Iconic photographs" are images that have become part of collective memory: "Napalm Girl" (Vietnam War), "The Falling Man" (9/11), "Alan Kurdi" (Syrian refugee child on the shore). These images changed public opinion—they made abstract tragedies concrete and emotionally present.
Infographics and the Rhetoric of Data
Edward Tufte ("The Visual Display of Quantitative Information"): good infographics "let the data speak." Bad infographics manipulate: truncated axes (growth appears greater), incomparable units, hidden variables.
"Chart crimes": Y-axis starts at 100, not 0—a small change appears huge. Three-dimensional pie charts—hard to read and easily distorted. Correlation diagrams without explanation of causality—rhetorically dangerous.
David McCandless ("Information Is Beautiful"): "good" infographics are not data embellishment, but their interpretation, which should be critiqued just as rigorously as a verbal argument.
Question for reflection: You regularly create or interpret infographics and presentations. What visual "rhetorical devices" do you use to emphasize your argument? Where is the line between persuasive presentation and manipulation?
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