# How many classes are in the Dewey Decimal System?

## How many classes are in the Dewey Decimal System?

ten main classes
Structure and Notation At the broadest level, the DDC is divided into ten main classes, which together cover the entire world of knowledge. Each main class is further divided into ten divisions, and each division into ten sections (not all the numbers for the divisions and sections have been used).

How do you get a Dewey Decimal number?

Build a DDC number

1. Locate the base number for the item you are classifying.
2. Do one of the following.
3. Build the number.
4. To continue number building, navigate to the next number specified in the add instruction or to another base number.
5. When the built number is complete and correct, click Save.

What is the Dewey Decimal number for the Bible?

220-229 are about the Bible, which is a fundamental document for Judaism, Christianity, Islam, and other groups such as the Samaritans. To put it roughly, 65 of 100 of the standard DDC hundreds classes are devoted to Christianity and the New Testament alone.

### What is the Dewey Decimal number for autobiographies?

Autobiographies are usually found in 920-928.

Do libraries use Dewey decimal?

Right now, most American public libraries continue to use either Dewey or the Library of Congress to organize their collections.

Is the Dewey Decimal System the same in every Library?

The Dewey Decimal Classification has a number for all subjects, including fiction, although many libraries maintain a separate fiction section shelved by alphabetical order of the author’s surname.

## Who assigns Dewey decimal numbers to books?

the Library of Congress
The Dewey editorial office is located in the Dewey Section of the Library of Congress, where classification specialists annually assign over 60,000 DDC numbers to records for works cataloged by the Library.

Where is photography in the Dewey Decimal System?

Just remember the magical number 770. That’s the division number for “Photography & computer art” in the Dewey Decimal System, used in hundreds of thousands of public libraries in 135+ countries around the world.

What are the categories of the Dewey Decimal System?

Become acquainted with the basic categories of the Dewey Decimal System. The broadest classes are 000-099 (general reference), 100-199 (psychology and philosophy), 200-299 (religion), 300-399 (social sciences), 400-499 (language), 500-599 (natural science), 600-699 (applied science), 700-799 (fine arts), 800-899 (literature) and 900-999 (history).

### What is Dewey Decimal Classification system?

Dewey Decimal Classification. Written By: Dewey Decimal Classification, also called Dewey Decimal System, system for organizing the contents of a library based on the division of all knowledge into 10 groups, with each group assigned 100 numbers.

What does Dewey Decimal Classification mean?

Definition of Dewey decimal classification. : a system of classifying books and other publications whereby main classes are designated by a 3-digit number and subdivisions are shown by numbers after a decimal point.

What are the Dewey classes?

The ten main classes of the Dewey Decimal system are as follows: 000 – Computer science, information, and 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