The most effective presentation style I have ever seen used literally hundreds (if not thousands) of slides, but in a way I had never encountered before. I’ve heard it described as the Lawrence Lessig presentation style, but my introduction to it was a presentation about “Identity 2.0” by Dick Hardt, and his is still the best I’ve seen. It absolutely blew me away, both as a presentation style and a mechanism for conveying information/message (ideally they’re the same thing, but I have sat through some presentations that are entertaining but devoid of content).
Dick Hardt’s presentation is at https://youtube.com/watch?v=RrpajcAgR1E&t=6s - the content has aged a little (though less than I expected before I just rewatched it) but if you’ve never seen it, I encourage you to watch it; it’s not that long, it will feel even shorter than it is because it’s so engaging, and it certainly illustrated to me how important communication skills are and improved my own presentation style.
Dick Hardt’s presentation is at https://youtube.com/watch?v=RrpajcAgR1E&t=6s - the content has aged a little (though less than I expected before I just rewatched it) but if you’ve never seen it, I encourage you to watch it; it’s not that long, it will feel even shorter than it is because it’s so engaging, and it certainly illustrated to me how important communication skills are and improved my own presentation style.