Did you know in PowerPoint, you can use videos taken from your photo cameras and the internet as background for your presentation, whether as an intro in ... click the Slide Show button to see ...

Most professional presentations use both (but necessarily simultaneously); however, some do play music softly in the background while ... Click Slide Show > Rehearse Timings.

The change from one image in a slide show to the next. A "wipe" moves the next image onto the first either horizontally, vertically, in a circle, like a checkerboard or in some other pattern.