The Facebook Mobile App has a great little feature for making slideshows of your favorite photos for a Facebook page. (As of now, this is only available for Facebook pages, not for individual profiles.) You can even add music! Here’s how it works. Open the app and go to your timeline or profile page to post. Tap Photo.
Tap Slideshow at the top. Select the photos you want to use. Then tap Next.
Now you can edit your slideshow. Tap the icon that looks like a piece of film.
Press down and hold on an image, then drag it to change its position in the slideshow.
Tap the music note icon to add music to the slideshow. You can choose from several styles. You’ll have to stick with what’s offered, it’s not set up to add your own soundtrack.
Then press Done.
Then you write something about the post and post as usual on Facebook. Users can just press the play button to watch the slideshow.