What does this really mean?
Challenged books: Materials that someone has attempted to remove or restrict from a curriculum or library collection.
Banned books: Materials that have been removed from a curriculum or library collection.
Like the many reasons behind book challenges, the persons issuing them are also varied in nature. According to the Office for Intellectual Freedom, these are the most common initiators:
Books have been, and continue to be challenged and banned for a variety of reasons. According to the Office for Intellectual Freedom, these are the most commonly cited reasons, with the most popular reasons indicated in larger font: