The "Federalist" Concordance is an alphabetical index of all but the most common words contained in the Federalist Papers, locating each occurrence of a word by paper number, author, page, and line in the definitive Cooke edition. It also indicates whether each word appears in the text or in a footnote, in italic or boldface type, or within a quotation or parentheses, and it provides information on the number of occurrences of each word and the relative frequency of those occurrences. This edition carries a new table correlating the pages in Cooke with those in other, often used editions of the Federalist—the Rossiter, Wills, Kramnick, Earle, and Great Books editions.

Thomas S. Engeman is associate professor of political science at Loyola University of Chicago. Edward J. Erler is professor in and chair of the Department of Political Science at California State College, San Bernardino. Thomas B. Hofeller is director of computer services at the Republican National Committee.