What is B-roll? B-roll is the supporting footage in a video. For you, it's the footage of your book: the cover, the pages, someone holding it, the book sitting somewhere it looks great. The name goes back to old film editing, when the main footage was the "A-roll" and the extra shots were the "B-roll."
Here's why it matters so much. Sonder builds your entire viral video for you. The hook, the structure, the pacing, all the proven stuff that stops people scrolling. That part is done.
But whilst Sonder uses proved viral structures, the one thing that makes YOUR video about YOUR book is the B-roll you upload and that Sonder adds at the end of your video. It's the only piece that's truly yours. It's what turns "nice video" into "where do I buy that book to talks more about this topic?"
So the quality of your video really comes down to one thing: the quality of your B-roll. Get that right and you're miles ahead.
Want to nail it? I recorded a full tutorial on how to make excellent B-roll of your book using your smartphone, even if you've never filmed anything before.
Go watch it, then go make yours. 🚀