Follow this link and do what she says: https://hackingphotography.com/fun-with-multiple-exposures/
Note that the multiple exposures are just a series of single shots for each of which you move the camera just a little bit. Got a barn nearby, or an old shed, or any subject. You’ll be amazed at what will come out at the end. Go on, have some fun!
Thanks to Sharon Jensen for discovering this blog post.