He has Madonna, Mick Jagger and Donna Karan on his speed dial. When Ashton Kutcher and Demi Moore decided to get married, they asked him to perform the ceremony. As he visits Israel to promote his new book, Rabbi Yehuda Berg explains why Judaism should be shared with non-Jews too

Wife and two daughters of Jewish physicist's cousin were murdered by Nazis in Italy in 1944. Einstein family now offering €5,000 reward for information about murder