The Library of Congress uses an established call numbering system for books and all other items housed in the library. Subject themes may be found here: Call Numbers
The Library catalog's page for a book has a map function to show you where a book is located in the Library. Additionally, floor plans with call number ranges are available at the AskUs Desks and posted by the elevators.
Need more help
Not the answer you were looking for? Search for more answers below, or contact us: