The Nazi’s were worried about books because they didn’t want people getting ideas of riots or overthrowing leaders. That’s why they were burning books because they knew the Jews would start trying stuff. Books aren’t dangerous, if they’re for your age group. Reading a super violent book for adults as a young kid, you’d lose your innocence and see the world differently. Books can also be liberating. Some books could tell you how you could escape prison, or in a religious sense, you can be free to read The Bible and practice religion.