‘Isaiah Berlin aan Marion en Felix Frankfurter’ (letter of 7–8 December 1934), trans. into Dutch by Jan Willem Reitsma, Nexus 37 (2003), 177–85
Letter to Beata Polanowska-Sygulska (24 February 1986), trans. into Polish by Beata Polanowska-Sygulska, Przeglad Polityczny no. 54 (2002), 120–3
Letters to Robert Craft in his An Improbable Life: Memoirs (Nashville, 2002: Vanderbilt University Press)
‘Five Essays on Liberty’, ed. Henry Hardy (second edition of Four Essays On Liberty)
Liberty, ed. Henry Hardy, with an essay on ‘Berlin and His Critics’ by Ian Harris (Oxford and New York, 2002: Oxford University Press)
Freedom and its Betrayal: Six Enemies of Human Liberty, ed. Henry Hardy (London, 2002: Chatto & Windus; Princeton, 2002: Princeton University Press; London, 2003, Pimlico; second edition, Princeton, 2014: Princeton University Press)
Letter and memorandum to David Ben-Gurion (23 January 1959; in Hebrew translation) in Eliezer Ben Rafael, with Yosef Gorny and Shalom Ratzbi (eds), Zehuyot Yehudiyot: Teshuvot hakhmei Yisrael le-Ben-Gurion (Sede Boqer, 2001: Ben-Gurion University of the Negev Press), 160–6
‘Notes on Prejudice’ (1981), New York Review of Books, 18 October 2001, 12
‘The State of Psychology in 1936’ (final version)