Guidelines are provided for creating effective PowerPoint presentations. Key recommendations include: plan your presentation and know your audience; limit slides to 10-20 with one main topic per slide; use bullet points with 7 words or less per point and no more than 7 points per slide; choose easy to read fonts and font sizes; use consistent colors and formatting; include graphics and images to enhance understanding but not overwhelm the text. The presentation should be practiced and spoken clearly while using slides as a supplement rather than script.