Government documents contain a wealth of information on all subjects. Below are some books that can help with government documents. Federal government information is made available for free public use in federal depository libraries located throughout the United States and its territories. In Pittsburgh, the Carnegie Library of Pittsburgh and the Hillman Library, University of Pittsburgh, are both federal depository libraries. Even though the University Libraries are not a federal depository, they still can provide you with a wealth of information. If you need help with government documents, don't hesitate to Ask Us.