Having to rely on a set of disparate slides created by others, the presenter reads the slides verbatim to the audience.

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This being a case about a business degree, it was only natural that the contested evidence would be a set of PowerPoint slides.

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To honor Vishniac's scientific achievements, Ms. Benton set up a darkened room at the end of the exhibition with a projector that cycles through 100 of his color slides.

WSJ: Roman Vishniac | Witness to Catastrophe | International Center of Photography | By William Meyers