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?
The Lorax
Deep in the Grickle-grass
And deep in the Grickle-grass, some people say,
if you look deep enough you can still see, today,
where the Lorax once stood
just as long as it could
before somebody lifted the Lorax away.I speak for the trees!
This thing is a Thneed
"Look, Lorax," I said. "There's no cause for alarm.
I chopped just one tree. I am doing no harm.
I'm being quite useful. This thing is a Thneed.
A Thneed's a Fine-Something-That-All-People-Need!
It’s a shirt. It's a sock. It's a glove. It's a hat.
But it has other uses. Yes, far beyond that.
You can use it for carpets. For pillows! For sheets!
Or curtains! Or covers for bicycle seats!"The Lorax said, "Sir! You are crazy with greed.
There is no one on earth who would buy that fool Thneed!"Biggering
I meant no harm. I most truly did not.
But I had to grow bigger. So bigger I got.
I biggered my factory. I biggered my roads.
I biggered my wagons. I biggered the loads
of the Thneed’s I shipped out. I was shipping them forth
to the South! To the East! To the West! To the North!
I went right on biggering...selling more Thneed’s.
And I biggered my money, which everyone needs.The last of them all
And at that very moment, we heard a loud whack!
From outside in the fields came a sickening smack
of an axe on a tree. Then we heard the tree fall.
The very last Truffula Tree of them all.UNLESS
The Lorax said nothing. Just gave me a glance.
Just gave me a very sad, sad backward glance,
as he lifted himself by the seat of his pants.
And I'll never forget the grim look on his face
when he hoisted himself and took leave of this place,
through a hole in the smog, without leaving a trace.
And all that the Lorax left here in this mess
was a small pile of rocks, with one word...
UNLESS.The word of the Lorax
But now, says the Once-ler, Now that you're here,
the word of the Lorax seems perfectly clear.
UNLESS someone like you cares a whole awful lot,
nothing is going to get better.
It's not.