Teaching: Polish literature (all periods); advanced Polish language; history of Poland (including literary language); Old Church Slavic; Medieval Orthodox Slavic texts; history of Eastern Europe. Recent graduate seminars have included: History of Cities; Early Modern East-Central Europe. Research interests: Orthodox Slavic Reform in the Ukraine and Belorussia in the late 16th and early 17th centuries. Polish sacred philology in the Reformation and the Counter-Reformation. Textual criticism and cultural polemics in Muscovy in the 17th century. Poland-Lithuania in the Age of Confessionalization. Enlightenment Poland. Cities. Vilnius/Wilno. Current projects: A translation of the Polish letters of Fryderyk Chopin; an edition, in English translation and with extensive commentary, of primary sources for a history of Protestant, Roman Catholic, Orthodox, and Uniate reform movements in the Polish-Lithuanian Commonwealth of the sixteenth and seventeenth centuries.