This is an interesting read on the pitfalls associated with PowerPoint presentations. One of the things that I am focusing on improving this semester is my presentation skills, and I found this article, The Cognitive Style of PowerPoint by Edward Tufte, to be helpful with regards of how to present data in a meaningful way. While you may find some of his opinions to be extreme, I believe that he still has many valid points and that his arguments are logical.

Even if you do not read this entire article, at least see his demonstration of Abraham Lincoln’s Gettysburg Address via PowerPoint presentation on page 12 along with the section on improving our Presentations on page 22. I’ve included some highlights of the article below:

The Cognitive Style of PowerPoint

PP convenience for the speaker can be costly to both content and
audience. These costs result from the cognitive style characteristic of the standard default PP presentation: foreshortening of evidence and thought, low spatial resolution, a deeply hierarchical single-path structure as the model for organizing every type of content, breaking up narrative and data into slides and minimal fragments, rapid temporal sequencing of thin information rather than focused spatial analysis, conspicuous decoration and Phruff, a preoccupation with format not content, an attitude of commercialism that turns everything into a sales pitch.

Extremely Low Resolution of PowerPoint 

Visual reasoning usually works more effectively when the relevant information is shown adjacent in space within our eyespan. This is especially the case for statistical data, where the fundamental analytical act is to make comparisons.

Bullet Outlines Dilute Thought

By leaving out the narrative between the points, the bullet outline ignores and conceals the causal assumptions and analytic structure of the reasoning.

Bullet outlines might be useful in presentations now and then, but sentences with subjects and verbs are usually better. Instead of this type of soft, generic point found in many business plans.

Improving Our Presentations

Designer formats will not salvage weak content. If your numbers are boring, then you’ve got the wrong numbers. If your words or images are not on point, making them dance in color won’t make them relevant. Audience boredom is usually a content failure, not a decoration failure.

Never use PP templates for arraying words or numbers. Avoid elaborate hierarchies of bullet lists. Never read aloud from slides. Never use PP templates to format paper reports or web screens.

Paper handouts at a talk can effectively show text, numbers, data graphics, images. Printed materials, which should largely replace PP, bring information transfer rates in presentations up to that of everyday material in newspapers, magazines, books, and internet screens.