A PowerPoint guru is someone who is extremely proficient at creating and using PowerPoint presentations. This person may have a lot of experience with the software and be able to use it to create highly effective, visually appealing presentations. They may also have a deep understanding of the various features and tools available in PowerPoint and be able to use them to their full potential. A PowerPoint guru may be a professional presenter, graphic designer, or someone who uses the software frequently in their work or personal life. They may also be a subject matter expert in a particular field and use PowerPoint to communicate their knowledge to others.