Work in progress: A new call number system for volumes in the Library

The Library is adopting a new call number system for open-shelf volumes: the Dewey Decimal Classification (DDC).

Thanks to the new system, users will find volumes of similar subjects arranged next to each other on the shelf.

The new location marks is a notation like nnn.nn AAA. You can find the location codes updated on OneSearch.

DDC divides human knowledge into ten main classes, which are divided into further partitions, identifying them with numerical notation. Created in the 19th century by the American librarian Melville Dewey, the DDC has been updated and adapted over the decades. The Library has adopted the most recent revision available in Italy (23rd ed.).

The following table provides the ranges of Dewey numbers and the rooms in which they are located:

DDC call numbers	Corresponding disciplines	First floor room, School’s Headquarters
	Computer science, media	Former Managing Director Room
100-199	Philosophy, psychology	Former Managing Director Room
200–299	Religion	Former Managing Director Room
300–399	Law, economics, statistics	Former Managing Director Room
400–499	Linguistics	In progress
500–599	Mathematics, natural sciences	In progress
600–699	Technology, engineering, agriculture, Management	In progress
700–799	Arts, sports	In progress
800–899	Literature	In progress
900–999	History, geography	In progress

The work on Dewey placements will not restrict access and circulation of materials, but will impact the physical location of volumes on the shelves.

We will keep this news constantly updated and report major shifts, however, ask librarians for support.