Edward Tufte
Envisioning Information
Beautiful Evidence
The Visual Display of Quantitative Information
Seeing With Fresh Eyes
Visual Explanations
ImageQuilts
The Cognitive Style of PowerPoint
An Essay by Edward TufteIn corporate and government bureaucracies, the standard method for making a presentation is to talk about a list of points organized onto slides projected up on the wall. For many years, overhead projectors lit up transparencies, and slide projectors showed high-resolution 35mm slides. Now "slideware" computer programs for presentations are nearly everywhere. Early in the 21st century, several hundred million copies of Microsoft PowerPoint were turning out trillions of slides each year.
Alas, slideware often reduces the analytical quality of presentations. In particular, the popular PowerPoint templates (ready-made designs) usually weaken verbal and spatial reasoning, and almost always corrupt statistical analysis. What is the problem with PowerPoint? And how can we improve our presentations?
Ruins, Rub-outs, and Trash
Tracing paper into palimpsest
Kahn's preferred medium was charcoal. He liked to use the side of his hand to rub out the thing he was drawing in order to draw it over, and over again.
Turning the tracing paper into a palimpsest; where some trace of each previous marking is still there, only blurred out and faded back by Kahn's rubbings-out and re-renderings, so that in what he made there is also the record of how it was made.
Charcoal on trash collected over time acting as ersatz animated film recording how Kahn's ideas developed.
So insufficiently palimpsestic
I worry that unlike Kahn's process and tools, the processes and tools we use are aimed at helping us satisfy the demand for moving fast and breaking things, not to be good, or to better ensure the doing of good work.
My son Gerrit told me about a YouTube video from a conference where the presenter asked for a show of hands from video game developers in the audience who could produce or successfully compile their own code from the previous quarter. Or from the previous year. Or from two years ago. And by that time the point had been made: nobody had their hand in the air.
Good for the next man
Lou Kahn said that a house is only good if it's good for "the next man."
He knew that the likelihood of its spaces and places continuing to be loved after "the first man" has come and gone requires the kinds of attention to detail you'd have to be paying if the next man and the next-next man were embraced as stakeholders from the onset.