My specialism with PowerPoint is for the business organizations which require sales ppt presentation with extremely data-driven content. They usually convey the information that they need and think should be useful.

Here are some of the guidelines that may help you.

• Do vary the slides, stimulate the visual interest and keep people’s focus on slides.
• Don’t use many pictures and be bold with your colours, use high contrast.
• Don’t use animations and transitions unless you’re really comfortable with it.
• If you use chart then minimize the information on the slides. Keep consistency and do not distract the viewers.