Take a look at the logo to the left. It is the symbol of the Federal Depository Library Program (FDLP) and it shows an eagle cradling a book in its wing. This succinctly illustrates the FDLP's mission.
In the words of the U.S. Government Publishing Office (http://www.gpo.gov/libraries/), which administers the FDLP, "The Federal Depository Library Program was established by Congress to ensure that the American public has access to its Government’s information. GPO administers the FDLP on behalf of the participating libraries and the public. Information products from the Federal Government are disseminated to these nationwide libraries that, in turn, ensure the American public has free access to the materials, both in print and online."