This dictionary identifies more than 13,000 German-Jewish surnames from the area that was pre-World War I Germany. From Baden-Wuerttemburg in the south to Schleswig-Holstein in the north. From Westfalen in the west to East Prussia in the east. In addition to providing the etymology and variants of each name, it identifies where in the region the name appeared, identifying the town and time period. More than 300 sources were used to compile the book. A chapter provides the Jewish population in many towns in the 19th century.