In PowerPoint presentations, which of the following is not a necessary component to follow?

In the context of PowerPoint presentations, the number of slides is not a necessary component to follow. The effectiveness of a presentation does not depend on a fixed number of slides; rather, it is more important to focus on the content and how well it is conveyed to the audience. There can be effective presentations with just a few slides or extensive presentations with many slides, depending on the topic and the depth of information being shared.

On the other hand, font size is crucial as it affects readability and ensures the audience can see and understand the text from their seating position. Image selections also play a significant role, as relevant visuals can enhance the understanding of the material and maintain audience engagement. Similarly, the animation of slides and components, while not always necessary, can help in emphasizing points and adding a dynamic element to the presentation, making it more appealing. In this way, while other components enhance a presentation's quality, the number of slides does not dictate its success or effectiveness.