El LRC uses the Library of Congress Classification (LCC) (Library of Congress Classification - LCC) to organize and arrange its book collections.
The LCC is an alphanumerical classification system that divides all knowledge into 21 basic classes, each identified by a specific letter (from "A" to "Z"), followed by, at topic level, a single number or span of numbers (from 1 to 9999), which make up the call number. With this classification, all the items that deal with a particular topic are grouped together on the shelves, but still classified in alphabetical order.
All the items in the CRAI Library have a call number (alphanumeric code) printed on a label affixed to the spine of books, journals and audiovisual items.
This call number identifies the topic that each item deals with so that all the items with the same topic are grouped together in the same place. The call numbers are unique for each item in the library, giving each one a precise and unique location within the collection as a whole. The following maps show the location of the freely accessible items at our two sites.