I’ve made a lot of charts and slide shows, both in PowerPoint and in LaTeX. I normally keep my slides simple because the slides are meant to be an aid to the presentation, not the presentation itself. Pretty slides won’t save you when you get nervous. This is something that many people don’t get, including the United States Government.
Cases in point: the “Integrated Acquisitions Technology and Logistics Life Cycle Management” chart. Zooming in on the second one to read the text doesn’t even begin to show how confusing the chart is since it’s over 5000×3000 pixels. Only looking at the entire chart and taking it in will show why the government should really put less money toward the military.
I think this answers a lot of questions, actually.