JUVENILE NONFICTION 43 Biography & Autobiography 36 Science & Technology 23 General 20 History 17 Science & Nature 14 Social Science 11 Histoire 9 Physicists 8 Women 7 Astronomy 5 Inventeurs 4 Inventors 4 Journalists 4 Astronomers 3 Astronomes 3 Authors, American 3 Écrivains américains 3 History & Archaeology 3 Philosophy 3 Physics 3 Physiologistes 3 Physiologists 3 Réformateurs sociaux 3 Réformatrices sociales 3 Scientists 3 Social reformers 3 Women social reformers 3 Abolitionists 2 African Americans 2