In the United States when people talk about Banning a Book normally what they mean is that there has been what is called a Challenge. In a Challenge someone tries to make a public entity stop people from reading a book, by removing it from library shelves, making it harder to get to by keeping it behind the desk, or removing it from classroom curriculum. Sometimes these efforts are successful, most of the time not.
It has long been a focal point of the American Library Association. They support people fighting bans whether ALA members or not and endeavor to track instances of Challenges. This office is called the Office for Intellectual Freedom (OIF). Their studies have shown up to 85% of challenges go unreported so they’ve made it easier for people to report a challenge.
Learn more about their efforts.
Follow the guide to reporting a challenge.