Ehsan Yarshater (born April 3, 1920, Hamadan, Iran) is the director of The Center for Iranian Studies and Hagop Kevorkian Professor Emeritus of Iranian Studies at Columbia University. He is famous for editing the monumental Encyclopædia Iranica along with 40 other editors and 300 authors from various academic institutions throughout the United States, Europe, and Asia. He is also famous for editing the third volume of the Cambridge History of Iran, comprising the history of the Seleucids, Parthians, and Sassanians, as well as a volume entitled Persian Literature. As of 2007, he is also editing a sixteen-volume series named History of Persian Literature. He has won several International awards for scholarship, including a UNESCO award in 1959. The Yarshater lectureship is considered by some to be the most prestigious honor in the field of Iranian Studies.