The Presidential Library System is a network of libraries and museums dedicated to preserving and showcasing the history and legacy of U.S. presidents. Each library is established by the National Archives and Records Administration (NARA) and contains documents, artifacts, and exhibits related to a specific president's life and presidency. These libraries serve as research centers for scholars and the public, providing access to important historical materials. They also host educational programs and events to promote understanding of the political and social issues faced during each president's term, contributing to the broader understanding of American history.