Library of Congress Call Numbers AKA How you ﬁnd a book in the library
What is a call number? This is an example from CCC’s Catalog A unique number assigned to eachbook in a library, like an address. Thenumber is unique to each library so thesame book will havedifferent numbers at different libraries.!
Encoded meaning Given the plethora of information available today, various systems use codes of numbers, letters, symbols, or abbreviations to organize information in thelibrary, on the job, and on the web. This lesson will cover the coding system used in most academic libraries and, in particular, the CCC Library.!
LC Organization• As you will learn, libraries have very precise systems and codes for organizing and arranging information!• Generally, academic libraries use the Library of Congress (LC) call numbers to organize books by subject!
LC Classiﬁcation The Library of Congress uses a combination of letters and numbers to organize by subject! A - General works L - Education B - Philosophy, Psychology, M - Music Religion N - Fine Arts C - Sciences of History P - Language and Literature D - World History Q - Science E - History of the Americas R - Medicine F - History of the Americas S - AgricultureG - Geography, Anthropology, T - Technology Recreation U - Military Science H - Social Sciences V - Naval Science J - Political Science Z - Bibliography, Library Science K - Law Information Resources
Question 1 Based on the slide before, under what section would you probably ﬁnd information about the legalization of marijuana? !A - General Works K- LawD - World History R - Medicine
Question 2 Based on the slide before, under what section would you probably ﬁnd information about the health affects of marijuana? Click on the topic below to test your hypothesis!A - General Works K- LawD - World History R - Medicine
Subclasses• Subclasses are additional letters and numbers after the ﬁrst letter that specify a subsection within the overall category. In this example, Industries is a subclass of Social Call Number: Sciences and Small & medium sized businesses in a subclass of HD2346.U52.S34 2003 Industries! H - Social Sciences HD - Industries. Land Use. Labor.• The last set of numbers, in this case HD2340.8-2346.5 - Small and the S34, represents a unique code medium sized businesses, artisans, created based on the author’s last handicrafts, trades name so that the book can have its own position in the library!
Subclass Numbers ND564. B82• Numbering for call numbers works on the decimal system! is less than ND564.5 B82
Question 3 Try to determine which call number should go ﬁrst among these three. PN PN PN30.3 303 30B23 B23 B73 S78 Y89
Finding a Book on the Shelf • While many books are available electronically from the catalog, a large number of our books are physically arranged by call number in the library! • Furthermore, CCC has different segments of the library that have books, such as the Reference section and the Contemporary Issues section, as you reviewed as part of your Online Library Tour.!
Shelf Guides• Listings of each call number range are available at the ends of each shelf!• These listings help guide you to the correction area for your book’s call number!
LC Classiﬁcation A - General works L - Education B - Philosophy, Psychology, M - Music Religion N - Fine Arts C - Sciences of History P - Language and Literature D - World History Q - Science E - History of the Americas R - Medicine F - History of the Americas S - AgricultureG - Geography, Anthropology, T - Technology Recreation U - Military Science H - Social Sciences V - Naval Science J - Political Science Z - Bibliography, Library K - Law Science Information Resources
Question 4What subjects of books would you expect toﬁnd where there is a shelf guide listed asQA76.9-RN682?! a) Medicine & Agriculture b) Science & Medicine c) Political Science & Science d) Language and Literature
Question 4 AnswerQ - ScienceR - Medicine b) Science & Medicine
Call numbers are found onthe spine (the outside edge) of the book on the shelf!
Browsing• By having the books arranged by call numbers that are based on the book’s subject, you can ﬁnd a book on the shelf and ﬁnd similar books before and after it on the same shelf !• At CCC, you can even use the same subject code to browse across some segments of the library!
Question 5 If you found a great book in the Stacks with a call number LA163, where might you ﬁnd books similar to your ﬁrst book in the Reference Section?! A - General Works L - EducationZ - Information Resources T - Technology
Therefore, when you are looking for a book! • First: Find the book in the online catalog to determine the library, location, call number, and availability! • Second: Use the above listed information to search the location using the shelf guides and call number labels on the books!