of the most beautiful scripts, as well as one of the most difficult to execute. Muhaqqaq was commonly used during the Mamluk era, but its use became largely restricted to short phrases, such as the basmallah, from the 18th century onward. Regional styles With the spread of Islam, the Arabic script was established in a vast geographic area with many regions developing their own unique style. From the 14th century onward, other cursive styles began to develop in Turkey, Persia, and China. Maghrebi scripts developed from Kufic letters in the Maghreb (North Africa) and al-Andalus (Iberia), Maghrebi scripts are traditionally written with a pointed tip (القلم المذبب), producing a line of even thickness. Within the Maghrebi family, there are different styles including the cursive mujawher and the ceremonial mabsut. Sudani scripts developed in Biled as-Sudan (the West African Sahel) and can be considered a subcategory of Maghrebi scripts Diwani is a cursive style of Arabic calligraphy developed during the reign of the early Ottoman Turks in the 16th and early 17th centuries. It was invented by Housam Roumi, and reached its height of popularity under Süleyman I the Magnificent (1520–1566). Spaces between letters are often narrow, and lines ascend upwards from right to left. Larger variations called djali are filled with dense decorations of dots and diacritical marks in the space between, giving it a compact appearance. Diwani is difficult to read and write due to its heavy stylization and became the ideal script for writing court documents as it ensured confidentiality and prevented forgery. Nasta'liq is a cursive style originally devised to write the Persian language for literary and non-Qur'anic works. Nasta'liq is thought to be a later development of the naskh and the earlier ta'liq script used in Iran. Quite rapidly gaining popularity as a script in South Asia. The name ta'liq means "hanging," and refers to the slightly sloped quality of lines of text in this script. Letters have short vertical strokes with broad and sweeping horizontal strokes. The shapes are deep, hook-like, and have high contrast. A variant called Shikasteh was developed in the 17th century for more formal contexts. Sini is a style developed in China. The shape is greatly influenced by Chinese calligraphy, using a horsehair brush instead of the standard reed pen. A famous modern calligrapher in this tradition is Hajji Noor Deen Mi Guangjiang. Modern In the post-colonial era, artists working in