Black Hand (b. unknown) is an artist whose signature is under many of the most controversial graffiti arts of Tehran, seen on walls and under bridges. His works endeavor to relate to different layers of society, criticizing the daily issues of the country he finds himself living in. one of the techniques that Black Hand, and its walls work as his canvas. During the past few years, the artists has entered the spaces of Tehran’s galleries, appropriating them as the context of his works. The exact place of his residence is unknown.