 He also authored several important texts on the art of calligraphy.Born, Abu Rakeem Hashim Muhammad al-Haj Derbas al-Qaisi, he became known as "al Baghdadi", occasionally by his nickname "al Kattat" and sometimes simply called, "Hashem, the calligrapher".He was born in the Khun Land district of Baghad in 1917 into a poor, but respected family.