The science behind organizing books in the library is very simple. EMC uses Dewey Decimal Classification (DDC) system which is one of the standards in classifying materials in the Library. The system was conceived by Melvil Dewey in 1973 and was first published in 1976. Hierarchy in the DDC is expressed through structure and notation. This means that all topics (except for the 10 main classes) are part of a broader topics above them. The Ten Main Classes include the following:
| Class No. | Discipline |
|---|---|
| 000 | Computer science, information & general works |
| 100 | Philosophy & psychology |
| 200 | Religion |
| 300 | Social sciences |
| 400 | Language |
| 500 | Science |
| 600 | Technology |
| 700 | Arts & recreation |
| 800 | Literature |
| 900 | History & geography |
Example:
Source:
Oclc. SUMMARIES DDC Dewey Decimal Classification. 2003.