I love sitting in airport waiting lounges watching people create or review their PowerPoint presentations. A recent day provided a great example of "what not to do". The presentation looked like it was a one or two day training program. At the top of each slide, where the slide title should be, was a graphic containing the name of the group being presented to and the section of the presentation. The top of the slide is the area your audience uses to anchor themselves with what they key point of this slide is. Don't waste that space on administrative details - which is what the name of the group and the section really are. Put that stuff at the bottom of the slide so it is there, but not the focus of the slide. Make your titles meaningful, so an audience member can glance at the title and instantly know what the key point of the slide is.