Premiere Pro offers a variety of built-in transitions that you can use to enhance your videos. These transitions can help you smoothly move between clips or add stylistic effects. Here are some common types of transitions in Premiere Pro:

1. **Cut**: A simple transition where one clip ends, and the next one begins abruptly.
2. **Dissolve**: Gradually fades out one clip while fading in the next clip.
3. **Cross Dissolve**: Fades out one clip while simultaneously fading in the next clip.
4. **Fade to Black/Fade to White**: Gradually premiere pro transitions fades to a solid black or white screen, then fades into the next clip.
5. **Slide**: The next clip slides into view, covering the previous clip.
6. **Zoom**: The next clip zooms into view, replacing the previous clip.
7. **Wipe**: The next clip "wipes" over the previous clip, revealing the new clip.

To apply a transition in Premiere Pro, simply drag and drop it between two clips on the timeline. You can customize the duration and other settings of the transition in the Effect Controls panel.

Additionally, there are third-party transition packs available for Premiere Pro that offer a wide range of creative transitions beyond the built-in options. These packs can be purchased or downloaded from various sources online.