If the statistics are boring, you've got the wrong numbers.

Confusion and clutter are failures of design, not attributes of information. And so the point is to find design strategies that reveal detail and complexity - rather than to fault the data for an excess of complication. Or, worse, to fault viewers for a lack of understanding.

Above all else show the data.

Clutter is not a property of information. Clutter is a failure of design.

The world is generally multivariate

My father worked for governments all his life as an engineer and public works director.

PowerPoint is like being trapped in the style of early Egyptian flatland cartoons rather than using the more effective tools of Renaissance visual representation.