Science fiction 142 Science fiction, American 97 Science fiction, English 55 History and criticism 32 Fiction 31 Science fiction (Form Entry) 22 Juvenile fiction 10 Science fiction, French 9 Bibliography 7 Life on other planets 7 Science fiction, Australian 6 American fiction 5 Fantastic fiction 5 Illustrations 5 Time travel 5 Utopias 5 History 4 Science fiction, Russian 4 Translations into English 4 World War, 1939-1945 4 Authorship 3 Criticism and interpretation 3 Fantasy fiction 3 Periodicals 3 Rocketry 3 Science 3 Science fiction films 3 Short stories 3 Americans 2 Anthropology 2