In this carefully researched analysis, Raphael and Jennifer Patai begin by defining race. They then develop the idea of the existence of "races" through history. In rich and fascinating detail, the authors consider the effects of intermarriage, interbreeding, proselytism, slavery, and concubinage on the Jewish population from Biblical times to the present.

New material explores the psychological aspects of the Jewish race issue, the Jewish psyche, and the consequences of the 1975 United Nations resolution equating Zionism with racism. A revised and updated scientific section on the measurable genetic, morphological, and behavioral differences between Jews and non-Jews supports the conclusion that the idea of a "Jewish race" is, indeed, a myth.