Science 9 Ouvrages pour la jeunesse 6 History 5 Sciences 5 Characters 4 Science in literature 4 Sherlock Holmes 4 Astronomy 3 Leadership 3 Organizational behavior 3 Philosophy 3 Power (Social sciences) 3 Science fiction 3 Chronology 2 Computer science 2 Data integration (Computer science) 2 Discoveries in science 2 Expériences 2 Forensic sciences 2 Logic programming 2 Medical jurisprudence 2 Space sciences 2 Braille books 1 Children's stories, Italian 1 Civilization, Modern 1 Earth (Planet) 1 Earth sciences 1 Effect of human beings on 1 Electronic data processing 1 English fiction 1