Services Acquisitions Discover how the Library of Congress acquires materials for its collections and for other research institutions. Archival Description Search & browse examples, standards, and help for creating catalog records and finding aids for discovery and use of personal papers, organizational records, and other archival collections. Ask a Librarian Have a research question? Need help using the Library? Get expert assistance from librarians & research subject specialists. Cataloging, Classification The Library's cataloging services include search vocabularies, classification, policy, products, training & cooperative programs. Cooperative Cataloging Programs The Library is committed to cooperative cataloging to benefit the world-wide library community. Shared standards & policies enable efficiencies & data sharing on a global scale. Copyright The U.S. Copyright Office, a department of the Library, administers the Nation’s copyright laws and offers services and support to authors and users of creative works. Duplication Services Providing digital, microfilm & paper copies, as well as custom reproductions for a fee from the Library’s collections. Interlibrary Loan Your local library can borrow materials from the Library of Congress on your behalf. Here's how. Law Library Comprehensive research & reference service to Congress & the public on foreign, comparative, international & U.S. law. Library Card (Reader Registration) Here's how you can get your Library-issued Reader Identification Card & begin research here in Washington, D.C. Library Standards The Library and associated organizations maintain key technical standards used in the library community. Linked Data Service Access and download controlled vocabularies & authorities useful for describing and indexing information resources. Preservation Learn about the research, science & collaboration involved in preserving the Library's collections. Publishing Resources for publishers, editors & the public interested in Library publications and co-publishing opportunities. Resource Description & Access Information on RDA implementation, including cataloging policy, practices, training & more.