Fahrenheit 451 works well as a statement against censorship because it presents the possibility of a world where there are no books and suppressed knowledge. The book is about Guy Montag, a book burner by trade, who is going through an intellectual crisis -- he begins wondering about the books he is burning and begins questioning his existence and his life as it is. He ultimately joins a band of intellectual rebels who memorize books in order to preserve them for future generations. It works well because it presents a well argued social criticism which not only applied to the McCarthy era that it was written in, but also to today's information age, with its changes in written communication (for example, text messaging rather than written letters).