The Pliny Fisk Library of Economics and Finance traces its roots to 1895 when Wall Street banker, Pliny Fisk, presented his research collection of railroad and corporate materials to Princeton University. Today the collection covers reference materials for economics, banking, international trade, development, finance, business, and statistics. The Pliny Fisk Library is part of the Social Science Reference Center (SSRC) which houses reference collections for Economics, Finance, Industrial Relations, Politics, Law, and Sociology. In addition, the depositories for the United Nations, European Union, United States, and New Jersey are in SSRC. The Pliny Fisk Library also coordinates collecting for the circulating economics and finance collections. The collections are particularly strong for economic history, monetary and fiscal policy, investments, trade, macroeconomics, and economic theory. A closely related collection is the Industrial Relations Library which focuses on United States, Canadian, British, and international comparative labor.