This final volume of supplements and indexes completes the Encyclopedia of German-Jewish Authors (Vol. 1, 1992 through Vol. 20, 2012). This volume contains entries pertaining to about 15 additional authors, including Saul Ascher, Rudolf Borchardt, and Ernst Hans Gombrich. In addition, it provides comprehensive indexes for the entire lexicon: for dates of birth and death; for place of activity and profession; and for participation in war and deportation.