"Starship Troopers" brought to an end Heinlein's series of juvenile novels. It became one of his best-selling books, and is considered his most widely known work. It won the Hugo Award for Best Novel in 1960, and garnered praise from reviewers for its scenes of training and combat and its visualization of a future military. It also became enormously controversial because of the political views it seemed to support. Reviewers were strongly critical of the book's intentional glorification of the military, an aspect described as propaganda and likened to recruitment. The ideology of militarism and the fact that only military veterans had the right to vote in the novel's fictional society led to it being frequently described as fascist. Others disagree, arguing that Heinlein was only exploring the idea of limiting the right to vote to a certain group of people. Heinlein's depiction of gender has also been questioned, while reviewers have said that the terms used to describe the aliens were akin to racial epithets.