[header] How to change a playlist cover on spotify on pc or mac [title] Open spotify on your computer. [step] The spotify icon looks like a green circle with black sound waves in it. You can find it in your applications folder on a mac, or on the start menu on windows. 
[title] Click a playlist on the left panel. [step] Find the playlists heading on the navigation menu on the left-hand side of your screen, and open the playlist you want to edit.