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TEHRAN, IRAN - MAY 4, 2008: A woman reads a book next to the picture of Ayatollah Ali Khamenei outside, at the 21st Tehran International Book Fair on the city's congregational prayer site on May 4, 2008 in Tehran, Iran. The annual event showcases 200,000 titles from 1700 domestic and 840 international publishers from 75 countries. The books will be presented under categories for General, Academic, Educational and Children's books. (Photo by Kaveh Kazemi/Getty Images)

TEHRAN, IRAN - MAY 4, 2008: A woman reads a book next to the picture of Ayatollah Ali Khamenei outside, at the 21st Tehran International Book Fair on the city's congregational prayer site on May 4, 2008 in Tehran, Iran. The annual event showcases 200,000 titles from 1700 domestic and 840 international publishers from 75 countries. The books will be presented under categories for General, Academic, Educational and Children's books. (Photo by Kaveh Kazemi/Getty Images)