How to Stop Spotify From Auto-Playing Music After You Finish a Playlist or Album

By default, whenever Spotify reaches the end of the song, album, artist, or playlist you’re listening to, it auto-plays similar songs using its Radio feature. You can see in the screenshot below that I listened to REM’s Bad Day, and then the next thing it played was a Song Radio for Bad Day.
by Harry Guinness via How-To Geek