What are 900s in Dewey Decimal System?
William Smith
Updated on April 04, 2026
700 – 799 = Arts & recreation. 800 – 899 = Literature. 900 – 999 = History & Geography.
What are the 10 Classification of Dewey Decimal System?
The 10 main groups are: 000–099, general works; 100–199, philosophy and psychology; 200–299, religion; 300–399, social sciences; 400–499, language; 500–599, natural sciences and mathematics; 600–699, technology; 700–799, the arts; 800–899, literature and rhetoric; and 900–999, history, biography, and geography.
How do I find a Dewey number for a book?
When you open a record for a book in the catalog, click on the Full Record tab at the top of the page and look for a field labeled “Dewey Class No.” If this field is listed, it will give the book’s Dewey classification.
Is Dewey Decimal System still used?
Dewey is still by far the most used book organization system in the world. More than 200,000 libraries in 135 countries currently use the system, according to estimates reported by the Chicago Tribune.
What does DDC mean in library?
The Dewey Decimal Classification (DDC) system is a general knowledge organization tool that is continuously revised to keep pace with knowledge. The system was conceived by Melvil Dewey in 1873 and first published in 1876. The DDC is published by OCLC Online Computer Library Center, Inc.
Why is the Dewey Decimal system bad?
The main complaint that public libraries have is that the Dewey Decimal System does not make reading exciting, and that there are other ways of categorizing and organizing books that are more like that of general bookstores.
What replaced the Dewey Decimal system?
Among libraries shifting away from Dewey, variations on the Book Industry Standards and Communications (BISAC) model are the most prevalent replacements, and while the idea of switching is attractive to many librarians, it is not perfect.