Arabic Writing System

http://www.ancientscripts.com/arabic.html
This sites contains a full list of the arabic letters with symbols. It starts by an explanation on the history of the arabic writing system, containing also a photo representing an old arabic inscription in stone. The alphabet presents the phonetic symbols for every letter. In addition, there is a note on the two variants to the Arabic alphabet, the Kufic and the Naskhi. It ends showing the numbers in arabic.