In order to find material you need to take a look at two items; location and call number. The book in the picture below is on the 4th floor (4. hæð) at The National and University Library (Lbs-Hbs Þjóðarbókhlaða) and the call number is 823 Ste.
4. hæð - The material is on the 4th floor of The National and University Library.
3. hæð - The material is on the 3rd floor of The National and University Library.
Námsbókasafn - The material is in the course reserves on the 4th floor of The National and University Library next to the circulation desk.
Handbókasafn - The material is in the reference library on the 2nd floor of The National and University Library.
Geymsla - The material is in storage. You can ask for material from storage at the circulation desk on the 2nd floor of The National and University Library.
Íslandssafn - The material is in The Icelandic National Collection. You can get access to most of the material by asking for it at the counter on the 1st floor of The National and University Library.
Íslandssafn/Tón- og myndsafn - The material is in The Audio-visual Department on the 4th floor of The National and University Library.
Handritasafn - The material is in The Manuscript Department. You can ask for manuscripts from The Manuscript Department in the reading room on the 1st floor of The National and University Library.
HÍ Stakkahlíð - The material is in The School of Education Library. Students and staff at The University of Iceland; and senior citizens and people with disabilities get a library card free of charge. Other patrons have to pay an annual fee.
Lögberg - The material is in The Law Library in Lögberg, the faculty of law building. The Law Library is on the 3rd floor and material is only loaned out to staff and students at The Faculty of Law.
Fjargeymsla - The material is stored remotely. You can ask for material from remote storage at the circulation desk on the 2nd floor of The National and University Library.
Tæknigarður - The material is in Tæknigarður (Centre for technical Innovation (TG)). You can ask for material from Tæknigarður at the circulation desk on the 2nd floor of The National and University Library.
Varaeintakasafn - The material is in Reykholt Legal Deposit Library. Material in Reykholt is not loaned out.
Books in the library are categorized with The Dewey Decimal Classification System. The system is classified into 10 main classes:
000 General works
100 Philosophy and psychology
200 Religion
300 Social sciences
400 Language
500 Science
600 Technology
700 Arts and recreation
800 Literature
900 History and geography
On the 3rd floor of The National and University Library you can find books in classes 000-199 and on the 4th floor in classes 200-999.
You can find a practical pamphlet about Dewey Decimal Classification at the service desk on the 2nd floor.