To add a view on Drupal 8, follow these steps:
1. Log in to your Drupal 8 website and navigate to the administrative menu.
2. Click on the “Structure” menu item and then click on “Views”, which will take you to the Views administration page.
3. Click on the “Add new view” button, which will bring up the “Add View” form.
4. Enter a name for your view in the “View name” field and select the “Show” field containing the data you want to display in your view.
5. Add any additional filters, fields, and sorting criteria to your view using the appropriate form fields.
6. Click on the “Save” button to save your view.
Once you have saved your view, you can navigate to its page by clicking on its name in the Views administration page. From there, you can further customize your view’s output by modifying its settings and layout.