To create a photo collage in PowerPoint for your presentation design, follow these steps:
- Open PowerPoint and create a new slide.
 - Click on the “Insert” tab and select “Pictures” to insert the photos you want to include in your collage.
 - Arrange the photos on the slide as desired.
 - To create a collage effect, you can adjust the size, position, and rotation of each photo.
 - You can also apply various effects and filters to enhance the visual appeal of your collage.
 - Once you are satisfied with the collage, you can add text, shapes, or other elements to further customize your design.
 - Remember to save your PowerPoint presentation to ensure you don’t lose your work.
 
By following these steps, you can easily create a visually appealing photo collage in PowerPoint for your presentation design.