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Book Class Scheme



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  • 1. Using the Library of Congress Call Number System: Locating books in ECI Library
  • 2. LC Call # System:
    • The book collection in the ECI Library utilizes the Library of Congress (LC) call number system ( Call #)
    • The LC call # is a combination of letters and numbers
  • 3. The LC call # has two functions:
      • The combination of letters and numbers provides the shelf location of a book
      • And
      • It also signifies the main subject area of the book
  • 4. Shelf Location:
    • Generally, a call # appears on the spine of a book
    • However, it can appear on the front cover of a book in the bottom left hand corner
  • 5. Examples of call #s :
    • E PN TR
    • 78 1995.9 647
    • .N78 .A73 .C74
    • M384 R87 2002
    • 2007 2006
  • 6. Call #s arranged on the shelf:
    • Call #s are arranged alphabetically and numerically by the letters and numbers that comprise them. For example, call #s beginning with N precede those beginning with NA .
    • Example of the filing order within a specific call # range:
    • N is before NA
    • NA is before NB
    • NB is before NC
  • 7. Locating and reading call #s on the shelf :
    • On the shelf, the filing order of the books with the following N call #s would read in this sequence:
    • N N N N
    • 72 72 72 72
    • .T4 .T45 .T68 .T68
    • W67 A86 U55 U57
    • 1992 2005 2005 1999
  • 8. Call #s and subject area categorization:
    • The combination of letters and numbers in the call # signifies the main subject area, subdivision for that subject, most often the author’s name (the designated author code), and the publication date.
  • 9. Call #s and subject area categorization:
    • Example:
    • Reframing Art by Michael Carter and Adam Geczy
    • LC call # breakdown:
    • N Visual Arts, History of Art, Art Criticism (subject area)
    • 71 Specific topic, time period or type of art
    • .C32 Artist or author code ( Carter from the above example)
    • 2006 Year of publication
  • 10. Call #s and subject area categorization:
    • Books found within a specific call # range indicate that the books in that range have a similar subject designation
    • Example:
    • The ND call # range covers the following subjects: Painting (portraits, landscape, watercolor, murals) history of painting (includes topics on technique and materials)
  • 11. If you don’t find the book you need, try the following:
    • 1. Recheck the call # in the ECI Library Catalogue (you may have written down the number incorrectly)
    • 2. In the catalogue, also check the following in the item record:
        • Is the book signed out? (Is there a due date provided?)
        • Is the book a Reserve item? (All Reserve items are set aside on the shelf behind the Circulation Desk).
        • Is the book a Reference item? (Reference books are library use only . The call # is preceded by REF ). The REF materials are located on the shelving bays near the public computer terminals.
    • 3. Double check the book trolleys : trolleys are either located upstairs near the study rooms, or they can be found adjacent to the Circulation Desk
    • 4. Fill out an ECI Library Search Form at the Circulation Desk