The Library of Congress is the main research library serving the United States Congress and the largest library in the world, holding millions of books, recordings, photographs, maps, and manuscripts. As a central part of the nation's cultural and intellectual heritage, it provides public access to a vast range of resources, curates historical collections, and supports scholarship across disciplines. The Library was established to enhance the work of Congress but has expanded its influence over the years by preserving national memory and promoting public education. Within its divisions, the United States Copyright Office operates as an authoritative body on copyright law, registering claims and providing guidance for authors, lawmakers, and the general public. The Library acts as a steward of creative expression and has played a vital role in safeguarding works for present and future generations by promoting respect for intellectual property and supporting the advancement of knowledge through free access to a diverse and extensive collection.