According to the American Library Association (ALA), a challenge is an attempt to remove or restrict materials, based upon the objections of a person or group. A banning is the removal of those materials. Challenges do not simply involve a person expressing a point of view; rather, they are an attempt to remove material from the curriculum or library, thereby restricting the access of others. As such, they are a threat to freedom of speech and choice.
As of July 2022, book banning in the U.S. hit its highest level in 40 years. Books about race, gender, diversity, and inclusion are being targeted and removed from schools and libraries in every state.