There are two ways in which you can change your album cover.
- Hover over You | select Organize.
- Click the Albums & Collections tab.
- Double-click your album.
- Drag any photo to the thumbnail in the top-left.
- Click Save.
- Hover over You | select Albums
- Double-click on your album
- Click on the Edit icon in the top right corner (looks like a pencil)
- Click on your photo | Click Select