An Ashkenazi Rov transplanted to Toledo, Spain, the Rosh suffered a bit of culture shock from the change. Rabbi Wein examines three major areas of halacha where the Sephardim and Ashkenazim differed: pruzbul during shemittah, polygamy, and the study of secular knowledge. He resolved each discrepancy in a unique way, successfully leading the Sephardim without "Ashkenazing" them.