My Library is a media storage where you can upload images, audio and video files, documents, and consequently reuse them in multiple courses.
To add a file to the library, click on the "Upload" button. You can preview the files directly in the library and delete them. Hover over an item to see a preview and a trash bin icon.
NOTE: If you delete a file from your Library, it will NOT be available in courses anymore.
Here are the media storage options for different plans:
Free - Not available
Pro - 10 GB
Team, Enterprise - Unlimited