This category is for adult animation films grouped by the target audience, or demographic, of the series. While there is a close correlation between certain demographics and genres, the two should not be confused. Any type of animated motion work that is mainly targeted towards adults and older adolescents, as opposed to children or all-ages (i.e. "family") audiences. Works in this genre may be considered adult for any number of reasons, such as complex themes, sexual or suggestive content, graphic violence, profane language or dark humor. Works in this genre may explore philosophical, political, or social issues. Some productions are noted for sophisticated and/or experimental storytelling and animation techniques. These animated films are not targeted for kids.