Around 1000 years ago, Ibn Muqlah and his brother created six genres of Iranian calligraphy. In the 17th century, Morteza Gholi Khan Shamlou and Mohammad Shafi Heravi created a new cursive style called Nastaʿlīq Shekasteh Nastaʿlīq. The document then profiles four famous Persian calligraphers - Mierza Mohammad-Reza Kalhor, Amirkhani, Mir-Ali Tabrizi, and Mir-Emad - and their contributions to calligraphy styles like Nas-Taliq.