This calligraphic piece bearing the name Muhammad, referring to the prophet of Islam, is written in jali thulth. Jali in Arabic means big, and thulth refers to a cursive script with deep downward sweeping strokes usually used for large inscriptions. The composition is written by Mehmet Ozcay, one of Turkey's most prominent calligraphers today. Calligraphy is a very important art form in the Islamic world. In Turkey, it has been one of the most esteemed medium of artistic expression.