How are the library books sorted and shelved?

The Dewey decimal system helps you find the books you are looking for in the library. 

Dewey Decimal Classification, the library's shelving system

The library’s main book collection is sorted and shelved according to the Dewey Decimal Classification system, DDC. According to DDC, books are grouped by subject with a numerical code for each subject area. 

The Book collection is the main part of the library's books which is placed on open shelves, where you pick up the book you want yourself. In the library search service, the call nr shows you which shelf/section to go to. Within each call number section, books are sorted alphabetically by author’s last name or the first word in the book title, which is shown after the number.

The classes of the Dewey Decimal System

The Dewey Decimal Classification is structured around ten main classes, each of them described with a numerical code of three digits, 000–900:

000 General works
004–006 Computer science
100 Philosophy and psychology
200 Religion
300 Social sciences
370 Education
400 Language
500 Science and mathematics
600 Technology
610 Medicine & health
700 Arts and sports
800 Literature
900 History and geography


A more detailed list (in Swedish and English) of DDC classes used at Linköping University Library is available here:
Hylluppställning på Linköpings UB (PDF)

The SAB collection

Older books are found in the SAB collection, kept in closed stacks. I you want to borrow a book from the SAB collection, place a reservation in the library search service to have it sent to the branch library of your choice.

Periodicals

Printed periodicals are sorted according to the SAB classification system with alphabetical codes. For example, printed journals and magazines on technology are shelved under P Technology within the periodicals section of the library.

School text book collection

School text books at Valla Library and Campus Norrköping Library are sorted according to school subject and age group.

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