Under his guidance the Institute of Palestine Studies, established in 1963, produced a long series of monographs in English and Arabic and several important translations of Hebrew texts into Arabic: 'The History of the Haganah', David Ben-Gurion and Shertok's diaries—texts that still await translation into English.[5] He has also produced ground-breaking work on the fall of Haifa and Deir Yassin. His best known works are Before Their Diaspora, a photographic essay on Palestinian society prior to 1948 and All That Remains, the encyclopedic collection of village histories which he edited. He became a senior research associate at the Institute of Middle Eastern Studies at Harvard in 1982.[2] More broadly, his intellectual interests extend from modern European history to international relations, in strategic and military terms.[3]