Why don't all books have every level?
A level only shows up on a book once it's been translated at that level, which happens automatically as you read or switch.
Overview
A reading level only exists for a book once that level has actually been translated. If a level is missing, it just hasn't been created yet, not because the book doesn't support it.
Lexxio Originals
Lexxio's own short fiction ships pre-translated at every level it offers, so this generally isn't something you'll run into with Originals. That said, even Originals don't always offer all five levels. Faithful only gets added when a title's prose is dense enough to sit meaningfully above Advanced. A plainly written short story might not need it.
Books you import yourself
EPUBs you bring into Lexxio work differently. They're translated on demand, chapter by chapter, at whatever level you're actually reading. If you've only ever read a book at Natural, it won't have a Guided version sitting around until you switch to Guided and let Lexxio translate it.
Translating a book requires a Lexxio plan. If you switch a book to a level it hasn't been translated at yet, Lexxio translates it in the moment, usually a few seconds per chapter, drawing on your monthly translation to do it. See How your monthly translation works for what that costs.
Tips
- The fastest way to get a level ready is to switch to it and read a chapter or two. Once translated, that level stays available for the rest of the book.
- For what each level changes in the text, see What are Reading Levels?. For where to change a book's level, see Choosing a reading level for one book.