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# Dewey Decimal Classification Explained

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### Transcript of "Dewey Decimal Classification Explained"

1. 1. OCLC Online Computer Library CenterGet to knowthe Dewey DecimalClassification systemA brief PowerPointslide show to help youunderstand how theDewey DecimalClassification systemworks in your library
2. 2. OCLC Online Computer Library CenterGet to know the DDCHave you ever gone to thelibrary and wondered howyou’d ever find the booksyou want?
3. 3. OCLC Online Computer Library CenterDid you know that your library has agreat way of organizing its booksso that you can find them easily? Get to know the DDC
4. 4. OCLC Online Computer Library CenterIt’s called the DeweyDecimal Classificationsystem—or DDC for short.This system got its namefrom Melvil Dewey, the manwho had this great ideafor organizing librarycollections. He lived from1851 to 1931 and introducedthe DDC in 1876. Melvil Dewey Get to know the DDC
5. 5. OCLC Online Computer Library CenterMr. Dewey’s idea was so good that it haslasted for 130 years so far and it hasspread to more than 200,000 librariesin 135 countries around the world! Get to know the DDC
6. 6. OCLC Online Computer Library Center ?You may be wondering howyou’re supposed to use the DDC.Those numbers with periods inthem on the ends of thebookshelves might look confusingto you. But once you know moreabout the DDC, you’ll find thatthey make it easy for you to findthe books you want. Get to know the DDC
7. 7. OCLC Online Computer Library CenterSo 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 CenterThe DDC helps libraries arrangethe items so that library userscan find them. It’s a lot like aneatly organized chest ofdrawers that you might have inyour 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 CenterLet’s say you’re interested inbicycles. What you want toknow about them will decidewhat DDC numbers you’ll needto 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 CenterEach of these topics  The history of bicycles (796.6)is about bicycles,  Taking care of yourbut a book about bicycle (629.27)each of these topics  Bicycle safetywill have its very (388.12)own DDC number.  Bicycle racing (796.62) Get to know the DDC
11. 11. OCLC Online Computer Library CenterOnce you have the number for the book youneed, you can go find the row of bookswhere the book you want should be.The books on each shelf are arranged innumber order, but if you need help, aparent or someone who works at thelibrary can help you. Get to know the DDC
12. 12. OCLC Online Computer Library CenterYou will probably notice that when youfind a specific book, other books shelvedaround it are usually books on asimilar 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 CenterThe topics in the DDC are arrangedinto ten main classes:000 Computer science, 500 Science information & general works 600 Technology100 Philosophy & psychology 700 Arts & recreation200 Religion 800 Literature300 Social sciences 900 History & geography400 Language Get to know the DDC
14. 14. OCLC Online Computer Library CenterThese ten main classes are eachdivided into ten divisions, like this:700 Arts 750 Painting710 Landscaping & 760 Graphic arts area planning 770 Photography &720 Architecture computer art730 Sculpture, ceramics 780 Music & metalwork 790 Sports, games &740 Drawing & decorative entertainment arts Get to know the DDC
15. 15. OCLC Online Computer Library CenterEach division is then divided into tensections, like this:790 Recreational 795 Games of chance & performing arts 796 Athletic & outdoor791 Public performances sports & games792 Stage presentations 797 Aquatic & air sports793 Indoor games 798 Equestrian sports & amusements & animal racing794 Indoor games of skill 799 Fishing, hunting & shooting Get to know the DDC
16. 16. OCLC Online Computer Library CenterYou’ll see all of these numbers on theLEFT side of the decimal point. But whatabout the numbers on the RIGHT sideof the decimal point? 796.046 Get to know the DDC
17. 17. OCLC Online Computer Library CenterThe numbers on the right side are used todivide a specific subject into even more specificparts 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 748.5It’s like sorting your socks by color, or musicCDs by performer or type of music. Get to know the DDC
18. 18. OCLC Online Computer Library CenterSo how do you know whatnumbers to look for in thefirst place? Here are a fewsuggestions: 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 CenterOnce you get to knowthe DDC, you’ll have amuch better idea aboutwhere you’ll find thebooks and other itemsyou need in yourlibrary—and in otherlibraries that use the DDC. Get to know the DDC
20. 20. OCLC Online Computer Library CenterMr. Dewey had a great ideaway back in 1876 that helpslibrary users like you today.His idea, the DDC, is yourfriend in the library—a friend you can alwayscount on to help you find theinformation you need. Melvil Dewey Get to know the DDC
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