Before the proliferation of video projectors and computers, and the proliferation of Microsoft PowerPoint and similar programs, lectures with visual aids usually meant a few phrases on a chalk board, or a few select phrases on flip charts. Sometimes visual aids meant overhead projector slides, which offer the advantage of the lecturer’s being able to write on the slide as the lecture progresses.
When I did a lot more lecturing for corporations and professional groups, I carried 35-millimeter photo slides, professionally produced. Some of them showed just the cover of a book. I favored black or very dark backgrounds with one word on a slide. With just one word, I could edit the presentation more easily, shuffling the order of the key words I wanted to use literally up to the last moment. Laying out a three-hour presentation using just single-word slides, with a few photos or other illustrations, served to focus me on the outline of the speech, on the pacing and timing of the presentation, and focus especially on just what the message was to be — what I wanted the audience to leave the auditorium humming.
PowerPoint changed all of that, and not necessarily for the better. Oh, I use PowerPoint myself, though I tend to favor single, high-impact historical photographs, rather than the thousand-word essays some people put up on the single slides. I still edit to get pictures that are spare in presentation, but rich in thought, and rich in potential for edifying talk. I have seen a few PowerPoint masters — perhaps you have, too — who can dispense an enormous amount of information and inspiration with a minimum of words and slides. Read the rest of this entry »
Posted by Ed Darrell 








