When posting your Storybooks Instagram videos, not only can you post them normally, but also as Instagram Stories. This gives you a distinct advantage over a standard post, as Stories are always kept at the top of your profile, but also apply link stickers to the post, allowing your audience to click through to your Storybooks directly within the post.
Normally, Stories only last for 24 hours when posted, but you can also choose to add a Story to your Story Highlights, by either creating a new Story Highlight or add to any existing ones.
To post a video as an Instagram Story:
Tap Create at the bottom or swipe right anywhere in Feed.
Scroll to Story at the bottom.
Tap Record at the bottom of the screen to take a photo, or tap and hold to record a video. To choose a photo or video from your phone's gallery or camera roll, swipe up anywhere on the screen.
Tap Draw, Text or Sticker to draw, add text or a sticker to your photo or video. To remove text or a sticker, drag and drop it on Delete at the bottom of the screen.
When you're ready to share, tap Your Story in the bottom left.
To add a story to a highlight:
Click your profile picture on the left to go to your profile.
Click New. If you don't see New, click Story highlight.
Enter a highlight name for your highlight, then click Next.
Click to select the story or stories you want to add to highlights, then click Next.
Choose a cover photo and click Done.
For further Information, Instagram's Help center can be found here: