However, it is not without controversy: the book contains vulgar language and has been the subject of attempted removals from public schools and public libraries, most often by [[Christian]] parental groups. Also, it arguably contains [[Socialism|socialist]] themes, vilifying big banks and promoting labor unions. | However, it is not without controversy: the book contains vulgar language and has been the subject of attempted removals from public schools and public libraries, most often by [[Christian]] parental groups. Also, it arguably contains [[Socialism|socialist]] themes, vilifying big banks and promoting labor unions. |