Iranian Oral Storytelling by Tahereh Bahrami
This was an attempt to distance art from royal courts and bring it into the hands of the people. Unknown artists who had gained experience in tile paintings, were inspired to create simple images on coffee house walls by the work of story-tellers and Shahnameh-khaans (those reciting the Book of Kings by Ferdowsi, which is in 50,000 couplets, and contains the history and epics of the Persian people from the Creation up to roughly the 7th C. before the Arab/Islamic invasion).