The Dewey Decimal Classification System. So…what IS the Dewey Decimal System??. • The Dewey Decimal System is a system of call numbers used to ORGANIZE non-fiction books in the library. Question: What is a call number and where do you find one?. A Call Number is…. - PowerPoint PPT Presentation
Text of The Dewey Decimal Classification System
The Dewey Decimal Classification System
So…what IS the Dewey Decimal System??
Question: What is a call number and where do you find one?
•The Dewey Decimal System is a system of call numbers
used to ORGANIZE non-fiction books in the library.
A Call Number is…
…a group of numbers and/or letters put together to tell you where in the library to find your book.
A call number is located at the bottom of the book on the spine.
Call numbers are in numerical order. For example: 590, 591, 592
But how does this help you find your book?
There are lots of subjects books can be about.
Some subjects have nothing in common—like wolves and cookbooks.
Others are very similar—like flowers and trees. Dewey grouped all the similar
subjects together. He settled on ten big groups of subjects. Then he assigned a number to those big subjects. This first basic classification looks like this:
000 Generalities (Reference)
100 Philosophy & Psychology
200 Religion & Mythology
300 Social Sciences & Folklore
500 Science & Math
600 Technology (applied science)
700 Arts & Recreation
900 Geography & History
Dewey’s 10 Main Categories:
Here is an example of the breakdown in the 500 section:
500 Natural Sciences & Math510 Math
550 Earth sciences
570 Life sciences
900 Geography and History
970 General history of North America
976 General history of North America: South Central United States
976.873 Anderson County
Categories go from “broader” to “more specific”
Sometimes it can be confusing to figure out how Dewey Decimal Numbers work on the library
HINT: THINK MONEY!!!! AS IN DOLLARS AND CENTS!!!
If you aren’t sure whether 919.65 is shelved before or after 919.57, THINK MONEY. Which is larger, $919.65, or $919.57?
So on the shelf, these two books will look like this:
Choose the correct order the books should be on the library shelf:
A. B. C.
There are also letters on the spine labels along with the
Sometimes you don’t want just ANY book about dinosaurs, you want the ones by Don Lessem.
So printed just below the Dewey number on the spine of the book there are three letters:
*First 3 letters of the author’s last name.*
The Dewey Number + the three letters
= the “call number.”
This is the address for the book!
Here is one reason:
This is the easy way to look at the book’s address:
works the same way:
At LCMS, we use FIC to designate Fiction.
On the spine you’ll see: 1. FIC on the top line 2. The first three letters of
the author’s last name below.
A novel by Walter Dean Myers has the “call number” FIC MYE.
But wait, there is more…
At LCMS, the Dewey Number for BIOGRAPHY is 921.
The three letters below the 921 are the first three letters of the
SUBJECT’s last name, not the author’s.
So all the books about Benjamin Franklin have the same call number: 921 FRA.
Yes, there is still more….
Finally, always remember: IF YOU NEED HELP FINDING
WHAT YOU’RE LOOKING FOR IN THE LIBRARY, ASK THE LIBRARIAN!