education both literary and technical, and, above all, the abolition of war. The expenditure the public most associates with Carnegie's name is that for public libraries. Carnegie himself frequently said that his favorite benefaction was the Hero Fund – among other reasons, because "it came up my ain back"; but probably deep in his own mind his library gifts took precedence over all others in importance. There was only one genuine remedy, he believed, for the ills that beset the human race, and that was enlightenment. "Let there be light" was the motto that, in the early days, he insisted on placing in all his library buildings. As to the greatest endowment of all, the Carnegie Corporation, that was merely Andrew Carnegie in permanently organized form; it was established to carry on, after Carnegie's death, the work to which he had given personal attention in his own lifetime. Research sources Carnegie's personal papers are at the Library of Congress Manuscript Division. The Carnegie Collections of the Columbia University Rare Book and Manuscript Library consist of the archives of the following organizations founded by Carnegie: The Carnegie Corporation of New York (CCNY); The Carnegie Endowment for International Peace (CEIP); the Carnegie Foundation for the Advancement of Teaching (CFAT);The Carnegie Council on Ethics and International Affairs (CCEIA). These collections deal primarily with Carnegie philanthropy and have very little personal material related to Carnegie. Carnegie Mellon University and the Carnegie Library of Pittsburgh jointly administer the Andrew Carnegie Collection of digitized archives on Carnegie's life. Works Carnegie was a frequent contributor to periodicals on labor issues. Books Our Coaching Trip, Brighton to Inverness (1882). An American Four-in-hand in Britain (1883). Round the World. New York: Charles Scribner's Sons (1884). An American Four-in-Hand in Britain. New York: Charles Scribner's Sons (1886). Triumphant Democracy, or, Fifty Years' March of the Republic. New York: Charles Scribner's Sons (1886). The Gospel of Wealth (1889). The Gospel of Wealth and Other Timely Essays. New York: The Century Co. (1901). The Empire of Business (1902). Audiobook via LibriVox. The Secret of Business is the Management of Men (1903). James Watt (Famous Scots Series). New York: Doubleday, Page and Co. (1905). Problems of Today: Wealth–Labor–Socialism. New York: Doubleday, Page and Co. (1907). Autobiography of Andrew Carnegie (posthumous). Boston: Houghton Mifflin (1920). Audiobook via Librivox. Articles "Wealth." North American Review, vol. 148, no. 381 (Jun. 1889), pp. 653–64. Original version of