Book excerpt: From the Russian civil wars through the Nazi years, the Jews of Eastern Europe were targets of violence during the first half of the twentieth century. During the Holocaust especially, entire communities were wiped out. In response, survivors sometimes compiled memorial books, or Yizker books, in an attempt to preserve historical, biographical, and cultural information about their shtetls. This multipart collection provides a concise history of the memorial books and their cultural contexts; eight analytical essays on or using Yizker books; key reviews, in some cases translated from the Yiddish, from the 1950s and later; and a bibliographic overview of secondary sources and collections.