Yale University Card Catalog from Ellen Su on Vimeo.
Sterling Memorial Library |
Back in the day, libraries used extensive systems of notecards in these specially designed file containers to help students and researchers find books. Also of note, the official Wikipedia page for "Library Catalog" features not just one but two pictures of Sterling Memorial Library. Neat!
If that interests you, there's also information about classification of books, the Dewey Decimal System.
Read more books! @NhvOrg