Maybe you remember “The Kodak Carousel” and how you would take 35mm Slide Transparencies and project these onto a screen.
Since I can remember, until around 2002, all the photography workshops used these, and sometimes many of them synced together with a soundtrack to tell stories.
I remember arriving early to see so often the photographer in the back of the room for the event with a stack of slides, just putting them on the carousel for later projects. Every time I saw this, I knew the presentation would be lacking. They hadn’t put any time into their preparation.
Many photographers could still impress with their images, but they didn’t have a well-thought-out presentation.
One of the best-prepared speakers I have heard in the past year was Darrell Goemaat at the FOCUS Zoom meetings I hold weekly with a group of communicators from all over the world.
The key to the success of his presentation was putting in the time to come up with points that all worked to communicate a purpose for his presentation.