LC call numbers are read from left to right, and from top to bottom. The letters at the beginning of the call number are alphabetical. The numbers immediately following are in basic numerical order, i.e., 5 then 6, 50 is after 49 and before 51, and 100 is after 99.
Who can use the Library and check out books? The Library of Congress is a research library, and books are used only on the premises by members of the public. Anyone age 16 and older may use the collections. All patrons using the Library's reading rooms and/or collections must have a reader card with a photo on it.
Whether LC or Dewey is used in a library is based on the size of the collection. Dewey is divided into 10 classes, or broad subjects. LC, on the other hand, has 21 classes, which allows for more call numbers needed for the greater number of books owned by larger academic libraries.
The system divides all knowledge into twenty-one basic classes, each identified by a single letter of the alphabet. Most of these alphabetical classes are further divided into more specific subclasses, identified by two-letter, or occasionally three-letter, combinations.
These will be shelved in the alphabetical order with single letters preceding single letter combinations (provided the first letters are the same). If one book has a letter and another book has number in the same position on the second line, THE BOOK WITH THE LETTER COMES FIRST.
Fiction is shelved alphabetically by the author's full last name. If there are multiple books by the same last name, then the books should be shelved then in alphabetical order of the author's first name.
There are three major classification systems, Dewey Decimal, Library of Congress, and Superintendent of Documents. The Dewey Decimal (DDC) system uses 10 main subject categories and is used by medium to small libraries.
Classification
| Letter | Subject area |
|---|
| H | Social Sciences |
| J | Political Science |
| K | Law |
| L | Education |
One of the oldest examples of printing in the world – passages from a Buddhist sutra, or discourse, printed in 770 A.D. – is housed in the Library's Asian Division. The oldest written material in the Library is a cuneiform tablet dating from 2040 B.C.
All the data in the American Library of Congress amounts to 15 TB.” LINK.
Most items published in the United States more than 95 years ago are now in the public domain. Items that were never published, like letters and family photographs, are copyrighted for the life of the creator plus 70 years.
the librarian of Congress
According to Section 136-1 of Title 2 of the U.S.C., the librarian of Congress shall be appointed to office by a nomination from the president and the advice and consent of the Senate. The librarian may then serve for a term of 10 years and be reappointed to the post with the same procedure.
The cards are free, and can be obtained by presenting a valid driver's license, state-issued identification card, or passport at the Reader Registration Station inside the Newspaper & Current Periodical Reading Room LM 133, on the first floor of the Madison Building or in Room LJ 139 (in the Microform and Electronic
Who Started Library of Congress?
The Library of Congress in Washington DC is essentially both the national library of the U.S. and the country's oldest federal cultural institution. Though it consists of only three buildings, it is the largest library in the world for shelf space and number of volumes.
According to Plutarch, the first person to blame is Julius Caesar. On his pursuit of Pompey into Egypt in 48 BCE, Caesar was cut off by a large fleet of Egyptian boats in the harbor of Alexandria. He ordered the boats to be burned. The fleet was destroyed, but the flames spread to the city and the library.
The Library does not grant or deny permission concerning the use of images. While many images are unrestricted, it is not true that all images in the Prints & Photographs Division are in the public domain.
(The Library of Congress is making many of its online files, such as its card catalog and other information sources, available online. The Internet address for telnet (connecting) to LOCIS is locis.loc.gov; the numeric address is 140.147. 254.3.
