How can I add and delete files in the Media Library?

1. Log in to WordPress.
2. Click on the "Media" section in the menu.
3. You will see a list of media files (images, videos, audio, etc.) that have been uploaded to your website.
4. To add a new media file, go to the top of the screen and click the "Add New" button.
5. Click the "Select Files" button to select a file from your computer, or you can drag and drop the file into the browser window.
6. Once the file is uploaded, you will see a thumbnail image and some basic information about the file.
7. To view more details about the file, click on the file's name.
8. From the "Edit Media" screen, you can add a title, caption, alt text, and a description for the file. By clicking on the "Edit Image" button, you can also edit the file itself.
9. When you're finished with your changes, make sure to click the "Update" button to save.

That's all! You now understand how to make use of the WordPress media library. You can use the media library to organise all of the media files on your website.