Page "Library of Congress Classification" Paragraph 1

LCC should not be confused with LCCN, the system of Library of Congress Control Numbers assigned to all books ( and authors ), which also defines URLs of their online catalog entries, such as " 82006074 " and "< nowiki > http :// lccn. loc. gov / 82006074 </ nowiki >".

The Classification is also distinct from Library of Congress Subject Headings, the system of labels such as " Boarding schools " and " Boarding schools -- Fiction " that describe contents systematically.

Finally, the classifications may be distinguished from the call numbers assigned to particular copies of books in the collection, such as " PZ7. J684 Wj 1982 FT MEADE Copy 1 " where the classification is " PZ7. J684 Wj 1982 ".