In the 1880s, libraries were growing fast. Each ne...  ...st. Each new book acquired needed an entry in the card catalog . While librarians are liable to be educated and u...  ...iable to be educated and use good penmanship, the cards were still hard to read because the nice script h...  ...eveloped the Dewey De...

(Photo: Pete Berkinshaw)OCLC stands for Online Com...  ...brary computer support services. Among them, OCLC catalogs books and other items owned by libraries around t...  ...ies around the world. When you search a library's catalog , the call numbers and subject headings are often...  ...t by OCLC.For decades, o...