Hebrew University, Jerusalem (Master of Laws, 1953). Lecturer in Law, Hebrew University, Jerusalem, 1977- 1979.
Arnon received his LL.M. degree from the Hebrew University of Jerusalem in 1953, and was admitted to the Israel Bar in 1954. On the Israeli Friends of the Hebrew University of Jerusalem web site, he is described as one of the leading jurists in Israel. He served as the chairman of the First International Bank of Israel, the fifth largest bank in Israel, between 1987 and 2000, followed by becoming Chairman of F.I.B.I Holdings Ltd.
Chairman of the Board of Governors of the Hebrew University. And Chairman of Arkia Israel Airlines, the second largest airliner in Israel, of which he was reported to own almost 20%. Arnon's assets were estimated at about US$50 million.
Arnon was known to represent the Safra brothers' Israeli interests and has represented Ehud Olmert and Aryeh Deri in the past.
Member: Israel Bar Association (Chairman, Jerusalem District, 1972-1979).