Perso-Arabic refers to a script that combines elements of the Arabic script with features from the Persian language. This writing system is primarily used for writing Persian, Pashto, and other languages in Iran, Afghanistan, and parts of Central Asia. It includes additional letters to accommodate sounds specific to these languages. The Perso-Arabic script is written from right to left and is characterized by its cursive style. It has been influential in the development of various regional scripts and has played a significant role in the literary and cultural history of the Islamic world.