 However, some textbooks within the Orthodox Jewish community were found to contain prejudices towards Palestinians and the Arabs were often held responsible for Israel's wars.Ruth Firer of the Harry S. Truman Institute for the Advancement of Peace at the Hebrew University of Jerusalem and Sami Adwan, a professor of education at Bethlehem University in Bethlehem compared Palestinian and Israeli textbooks in 2002.Of the Palestinian textbooks they found "According to the everyday experience of Palestinians, modern-day Israelis are presented as occupiers.