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The First Amendment of the Constitution guarantees our right to free speech, which includes the right to read and write books that might be considered by some to be too violent, hateful, or offensive.
In some cases, those censoring books think that a book might be appropriate for older children, but just not younger ones—a book that might be perfectly fine for a ninth grader may be disturbing or confusing to a fourth grader.
Not everyone agrees on which books should be banned.
A book that has been banned is actually removed from a library or school system.
As the American Library Association notes, books are usually banned "with the best intentions—to protect others, frequently children, from difficult ideas and information." Adults often censor books from children if they feel that the books have frightening or controversial ideas in them.