Librarians and Archivists
The Library acquires materials in all formats—books, periodicals, maps, music, prints, photographs, recorded sound, videos, electronic, etc.—and in all subjects, except technical agriculture and clinical medicine, from all over the world.
Cataloging staff are responsible for the description, subject analysis, and classification of books, serials, and a wide variety of special format materials collected by the Library of Congress.
Library of Congress collections are treated using technologies, practices, and procedures that are known to reduce risks to these unparalleled resources, ensuring their usefulness to researchers today and far into the future.
Through its 21 research centers and online services, the Library provides access to a collection of over 100 million items, in hundreds of different languages and virtually every format.