The author argues that there is no American Jewish history which does not involve assimilation. By assimilation he refers to the process of an individual or a group, usually a minority, taking on the values and practices of another individual or group, which is usually the majority. He states that assimilation is not a disease but a social process, that is necessary. It is hard even to imagine the Jews of the United States as individuals or as a community without some degree of assimilation. Obviously, the operative words are "some degree." What is that degree? What have those degrees been?