OCLC Online Computer Library Center

Get to know
the Dewey Decimal
Classification system

A brief PowerPoint
slide show to...
OCLC Online Computer Library Center

Get to know the DDC
Have you ever gone to the
library and wondered how
you’d ever fin...
OCLC Online Computer Library Center

Did you know that your library has a
great way of organizing its books
so that you ca...
OCLC Online Computer Library Center

It’s called the Dewey
Decimal Classification
system—or DDC for short.
This system got...
OCLC Online Computer Library Center

Mr. Dewey’s idea was so good that it has
lasted for 130 years so far and it has
sprea...
OCLC Online Computer Library Center

You may be wondering how
you’re supposed to use the DDC.
Those numbers with periods i...
OCLC Online Computer Library Center

So what does

It helps solve a big problem:

the DDC do?

helping you find the right
...
OCLC Online Computer Library Center

The DDC helps libraries arrange
the items so that library users
can find them. It’s a...
OCLC Online Computer Library Center

Let’s say you’re interested in
bicycles. What you want to
know about them will decide...
OCLC Online Computer Library Center

Each of these topics
is about bicycles,
but a book about
each of these topics
will ha...
OCLC Online Computer Library Center

Once you have the number for the book you
need, you can go find the row of books
wher...
OCLC Online Computer Library Center

You will probably notice that when you
find a specific book, other books shelved
arou...
OCLC Online Computer Library Center

The topics in the DDC are arranged
into ten main classes:
000 Computer science,
infor...
OCLC Online Computer Library Center

These ten main classes are each
divided into ten divisions, like this:
700 Arts

750 ...
OCLC Online Computer Library Center

Each division is then divided into ten
sections, like this:
790 Recreational
& perfor...
OCLC Online Computer Library Center

You’ll see all of these numbers on the
LEFT side of the decimal point. But what
about...
OCLC Online Computer Library Center

The numbers on the right side are used to
divide a specific subject into even more sp...
OCLC Online Computer Library Center

So how do you know what
numbers to look for in the
first place? Here are a few
sugges...
OCLC Online Computer Library Center

Once you get to know
the DDC, you’ll have a
much better idea about
where you’ll find ...
OCLC Online Computer Library Center

Mr. Dewey had a great idea
way back in 1876 that helps
library users like you today.
...
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Kids tutorial 0606

  1. 1. OCLC Online Computer Library Center Get to know the Dewey Decimal Classification system A brief PowerPoint slide show to help you understand how the Dewey Decimal Classification system works in your library
  2. 2. OCLC Online Computer Library Center Get to know the DDC Have you ever gone to the library and wondered how you’d ever find the books you want?
  3. 3. OCLC Online Computer Library Center Did you know that your library has a great way of organizing its books so that you can find them easily? Get to know the DDC
  4. 4. OCLC Online Computer Library Center It’s called the Dewey Decimal Classification system—or DDC for short. This system got its name from Melvil Dewey, the man who had this great idea for organizing library collections. He lived from 1851 to 1931 and introduced the DDC in 1876. Melvil Dewey Get to know the DDC
  5. 5. OCLC Online Computer Library Center Mr. Dewey’s idea was so good that it has lasted for 130 years so far and it has spread to more than 200,000 libraries in 135 countries around the world! Get to know the DDC
  6. 6. OCLC Online Computer Library Center You may be wondering how you’re supposed to use the DDC. Those numbers with periods in them on the ends of the bookshelves might look confusing to you. But once you know more about the DDC, you’ll find that they make it easy for you to find the books you want. ? Get to know the DDC
  7. 7. OCLC Online Computer Library Center So what does It helps solve a big problem: the DDC do? helping you find the right information by giving you a specific number that belongs to the item you want. Get to know the DDC
  8. 8. OCLC Online Computer Library Center The DDC helps libraries arrange the items so that library users can find them. It’s a lot like a neatly organized chest of drawers that you might have in your bedroom:  Socks in the top drawer  Underwear in the second drawer  Shirts in the third drawer  Pants in the bottom drawer Get to know the DDC
  9. 9. OCLC Online Computer Library Center Let’s say you’re interested in bicycles. What you want to know about them will decide what DDC numbers you’ll need to find:  The history of bicycles  Taking care of your bicycle  Bicycle safety  Bicycle racing Get to know the DDC
  10. 10. OCLC Online Computer Library Center Each of these topics is about bicycles, but a book about each of these topics will have its very own DDC number.  The history of bicycles (796.6)  Taking care of your bicycle (629.27)  Bicycle safety (388.12)  Bicycle racing (796.62) Get to know the DDC
  11. 11. OCLC Online Computer Library Center Once you have the number for the book you need, you can go find the row of books where the book you want should be. The books on each shelf are arranged in number order, but if you need help, a parent or someone who works at the library can help you. Get to know the DDC
  12. 12. OCLC Online Computer Library Center You will probably notice that when you find a specific book, other books shelved around it are usually books on a similar topic. That’s how the DDC is arranged—by topic. And boy does the DDC have lots of topics! Hundreds of them! Thousands of them! Get to know the DDC
  13. 13. OCLC Online Computer Library Center The topics in the DDC are arranged into ten main classes: 000 Computer science, information & general works 100 Philosophy & psychology 200 Religion 300 Social sciences 400 Language 500 Science 600 Technology 700 Arts & recreation 800 Literature 900 History & geography Get to know the DDC
  14. 14. OCLC Online Computer Library Center These ten main classes are each divided into ten divisions, like this: 700 Arts 750 Painting 710 Landscaping & area planning 760 Graphic arts 720 Architecture 770 Photography & computer art 730 Sculpture, ceramics & metalwork 780 Music 740 Drawing & decorative arts 790 Sports, games & entertainment Get to know the DDC
  15. 15. OCLC Online Computer Library Center Each division is then divided into ten sections, like this: 790 Recreational & performing arts 795 Games of chance 791 Public performances 796 Athletic & outdoor sports & games 792 Stage presentations 797 Aquatic & air sports 793 Indoor games & amusements 798 Equestrian sports & animal racing 794 Indoor games of skill 799 Fishing, hunting & shooting Get to know the DDC
  16. 16. OCLC Online Computer Library Center You’ll see all of these numbers on the LEFT side of the decimal point. But what about the numbers on the RIGHT side of the decimal point? 796.046 Get to know the DDC
  17. 17. OCLC Online Computer Library Center The numbers on the right side are used to divide a specific subject into even more specific parts of a subject.  For a book on making cookies at home, look for 641.8654  For a book on Golden Retrievers, look for 636.7527  For a book on stained glass, look for 748.5 It’s like sorting your socks by color, or music CDs by performer or type of music. Get to know the DDC
  18. 18. OCLC Online Computer Library Center So how do you know what numbers to look for in the first place? Here are a few suggestions:  You can look up your topic on a computer in your library.  You can browse the shelves, using the DDC numbers on the ends of shelves as your guide.  You can ask someone who works at the library to help. Get to know the DDC
  19. 19. OCLC Online Computer Library Center Once you get to know the DDC, you’ll have a much better idea about where you’ll find the books and other items you need in your library—and in other libraries that use the DDC. Get to know the DDC
  20. 20. OCLC Online Computer Library Center Mr. Dewey had a great idea way back in 1876 that helps library users like you today. His idea, the DDC, is your friend in the library— a friend you can always count on to help you find the information you need. Melvil Dewey Get to know the DDC

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