Instead of banning book, learn from it
Have you ever wondered what it would be like if there was no record of the past?
In some cases it might be a good thing, but in reality I think the modern day world would be completely different. Sometimes the past works as a reminder of how things used to be, and if you look at it closely enough you can learn lessons.
For example, this past year I had to read the book The Adventures of Huckleberry Finn by Mark Twain in Mrs. Martinez' English class.