The next few pages cover the basics of working with transitions. Once you've mastered these, I'll describe how to customize transitions, how to use an image matte and fade transition to create long fade-in and fade-out effects, and how to insert multiple transitions into a slide show.
If the Video Transitions collection is not showing, click Video Transitions in the Collections pane or choose Video Transitions from the Collections list (Figure 10.5).
If necessary, scroll down to reveal the transition you want to preview.
To preview the transition, do one of the following: