Todd Anderson September 24, 2016 U.S. Library of Congress acquires TLG Todd Anderson September 24, 2016 The U.S. Library of Congress is the de facto national library for the country and is the oldest national cultural institution in the United States of America. It holds the second-largest library collection in the world. As a research library for the world (over 450 languages in its book collection alone), its holdings are vast and multifaceted. Among other items the library's holdings include rare, limited edition visual artworks including master drawings, photographs, and fine art prints. The library's collection of artworks is the highest caliber of quality and cultural importance.