Emil J. Polak. Medieval and Renaissance Letter Treatises and Form Letters. A Census of Manuscripts Found in Eastern Europe and the Former U.S.S.R. Foreword by Paul Oskar Kristeller. (Davis Medieval Texts and Studies, 8.) Leiden, New York, and Cologne: E.J. Brill, 1992. xxii + 324 pp. $91.50. - Emil J. Polak. Medieval and Renaissance Letter Treatises and Form Letters. A Census of Manuscripts Found in Part of Western Europe, Japan, and the United States of America. The Works on Letter-Writing from the Eleventh through the Seventeenth Century Found in Belgium, Denmark, Finland, Greece, Ireland, Liechtenstein, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland, United Kingdom of Great Britain and Northern Ireland Japan, and the United States of America. (Davis Medieval Texts and Studies, 9.) Leiden, New York, and Cologne: E.J. Brill, 1994. xvii + 474 pp. $148.75.