Mark Twain Censorship

While I would make an argument that children should be exposed to material appropriate for their own age, I do not agree with the practice of censorship as it relates to books. Books can be seen as a key to open the door to a child's imagination. The Harry Potter series was written to entertain children, and not to teach them about witchcraft. There are already books on the shelves written specifically to teach about witchcraft, and the target audience for those books is not children. Mark Twain's writings could be seen as promoting racism, but one must remember that was not the intent, but a circumstance of the time in which Twain lived. To censor a book because it may spark an interest in the occult or someone says it may promote racism