Iran is a country that is enormously literate. Iranians love for poetry spans centuries, but reading of all types of material is serious business in Iran and is evidenced by the vast numbers of book shops that are available to the public. In recent times, books and coffee shops have seen an increasing union in this country and that combination which allows for intellectual discussions between people milling around these shops have become a concern for an Iranian government that has a notable bent on suppression of the press and Internet traffic. So it probably should come as no surprise that the commingling coffee shops and book stores have been targeted by a new rule against the “mixing of trades.”
The possibility of people engaging in thought provoking discussion in groups where there is a presence of literature that could influence thought, evidently is a frightening thing to this otherwise repressive government. I guess you can just never be to careful of what might happen when thinking people put their heads together.