National Library Legislative Day (NLLD) is a two-day educational event that brings hundreds of librarians, trustees, library supporters and patrons to Washington, D.C.

Attendees spend one-day learning effective advocacy tactics and being briefed about pressing federal legislative issues that are impacting libraries. On the second day, they join other attendees from their state to meet with their members of Congress and rally support for library issues and policies. Open to the public, the event also offers attendees the opportunity to attend a reception on Capitol Hill.