The Star Wars universe is much bigger than the movies and TV shows imply. As it stands now, the earliest part of the timeline we’ve seen in live-action is The Acolyte, while the latest is The Rise of Skywalker. But there’s much more to be found on the outer rim of Star Wars canon: the books, comics, and games.
These worlds are usually kept separate, but we’ve recently begun to see more overlap between the books and the TV shows. And in Andor Season 2 Episode 10, there’s a huge book reference in plain view... if you’re willing to decode it.
