Thuluth
Thuluth appeared in the Abbasid period and reached its mature form with the Ottoman calligraphers. Its name comes from the pen proportion it was written with, one third. Most calligraphers treat it as the hardest hand to master.
Arabic calligraphy
Arabic calligraphy is not one hand. Each style grew in a different place and for a different job, and each has its own rules of proportion and shape. Below are six of the best known styles, how to tell them apart by eye, and where you still meet them today.
Thuluth appeared in the Abbasid period and reached its mature form with the Ottoman calligraphers. Its name comes from the pen proportion it was written with, one third. Most calligraphers treat it as the hardest hand to master.
Naskh is the copyists' hand, used for books and Qurans because it stays legible at a small size. Its proportions were later fixed into a strict system, and it became the base of most Arabic printing.
Diwani was developed in the Ottoman chancery and used for the sultans' decrees. Its tight interlocking construction made a document hard to forge or to alter after it was written.
Kufic is the oldest Arabic hand, named after the city of Kufa. The earliest Quran copies were written in it, and it stayed the formal script for centuries before the rounded hands took over.
Ruq'ah is the everyday hand of the Arab world, made for speed. It was simplified and taught as the standard handwriting in Ottoman schools, and it is still what most people write by hand.
The Farsi hand, also called Nastaliq, grew in Persia out of two earlier scripts. Its calligraphers built it around a hanging line rather than a flat one, and it became the script of Persian poetry.
The platform draws these samples itself with open computer fonts, so each one approximates its style rather than reproducing a calligrapher's hand.
Open the editor, write your phrase, and see how it sits in each font you have.