Although the banning of books is actually un-constitutional due to the first amendment, various people and groups often tend to ban books from their social circle. Often times, many churches are the major group that will ban different kinds of books. They ban certain kinds of books because they feel that it is blasphemous to the religion. Schools may also ban certain kinds of books from the campus premesis depending on the nature of the school. Schools will sometimes ban books due to the fact that books may be inapropriate for certain ages.