Each main class is further structured into ten hierarchical divisions each having ten sections of increasing specificity.
Dewey decimal system ceramics.
The ddc constantly updates to enable better discovery across any topic in multiple languages.
The dewey decimal classification ddc is structured around ten main classes covering the entire world of knowledge.
The dewey decimal classification ddc system is the world s most widely used way to organize library collections.
As a system of library classification the ddc is arranged by discipline not subject so a topic like clothing is classed based on its disciplinary.
500 599 natural sciences and.
To learn more about what the parts of a book s call number mean take a look at how do i read a call number.
The 10 main groups are.
The dewey decimal classification ddc colloquially the dewey decimal system is a proprietary library classification system first published in the united states by melvil dewey in 1876.
The numbers following the decimal are subdivisions of the main class organized further by subject and author.
Dewey decimal system a guide to call numbers.
The three numbers before the decimal are the main class organized by the subject of the book.
Originally described in a four page pamphlet it has been expanded to multiple volumes and revised through 23 major editions the latest printed in 2011.
Because the ddc is easy to use you can increase the visibility of your materials quickly and efficiently.
Main classes in dewey decimal system dewey decimal call numbers are organized as follows.