Melvil Dewey (1851–1931) devised his system of classification while working as a twenty-one-year-old student assistant in the Amherst College library. He later founded the first library school at Columbia in January 1887.
| 000–099 General works 100–199 Philosophy 200–299 Religion 300–399 Social sciences 400–499 Language |
500–599 Pure science 600–699 Technology 700–799 Arts 800–899 Literature 900–999 Geography, history |
070.5028 Desktop publishing; 133.422 Satanism; 242 Meditations; 326 Slavery and emancipation; 480 Hellenic languages; 551.6 Greenhouse Effect; 616.89 Abnormal psychology; 635.976 Shrubs; 796.358 Cricket; 894 Ural-Altaic, Paleosiberian, Dravidian; 917.304 Directories to campgrounds; 940.53493 Frank, Anne.