If you'd like to preview an Edit Style, firstly, make sure you're in the Projects home screen, you can navigate here by clicking on the Narrative logo in the top left:

Now click on the Styles tab on the left hand navigation bar. On the Styles home screen, you will see all the different Edit Styles we have, including your own Personal Styles.

Now, double click the Edit Style which you'd like to preview. Once you've opened a Style, you can hover your mouse over the preview images to see a before and after.

If you'd now like to preview other Edit Styles, you can click through them on the left hand. You can also click to create a new Style, which you can learn how to do by clicking here.