Pages in this category should be moved to subcategories where applicable. This category may require frequent maintenance to avoid becoming too large. It should directly contain very few, if any, pages and should mainly contain subcategories.
Wikimedia Commons has media related to Library and information science.
| Library cataloging and classification | |
|---|---|
| main topic | library science |
| Colon | 2  |
| Dewey Decimal | 020 |
| Universal Decimal | 02 |