Microsoft's PowerPoint long ago became one of the most popular tools for business presentations. That's likely because of its efficiency and simplicity (I have never read a manual nor used the help key): It helps you to easily present the theses of your presentation, demonstrate the dynamics of processes, and even provide training.
But I want to talk about cases when PowerPoint's resources are not enough to deliver on the goals of communication.
If Not PowerPoint, Then What?
At the lowest point on the scale of communication tools, I would start with an ordinary live speech, without the support of a slideshow. But when you feel it is necessary to illustrate a report with facts, graphs or images—you can't go ahead without slides. And certainly the easiest way to do that is to use PowerPoint.
Next, video provides a great deal of possibility. While using it, you can show processes and products as they appear and function in real life. Video is definitely worth hundreds of pages of text and explanations.
And atop the scale—the pinnacle of the evolution in communication instruments—I place multimedia presentations (also known as interactive presentations). This is an integrated product that combines text, graphics, animation, video, and audio (voice or music). And although a multimedia presentation is much more powerful than video, it costs less to develop and use.
Multimedia presentations have every presentation capability of video along with two additional strengths: interactivity and updateability. You do not need to re-film the movie or invite experts to renew the material—you can do it by yourself. Assuming, of course, that the developer of the presentation has been in charge of it all along.