The Arabic Alphabet has 28 letters. The shape of these letters changes depending on their position in the word, whether isolated; in the beginning of the word (initial); in the middle (medial); or at the end (final). http://www.sakkal.com/Arab_Calligraphy_Art1.html
Beautiful Zoomorphic Bird Calligraphy.The zoomorphic Islamic calligraphy artform is a mode of script metamorphosing into living forms which are also readable letters and of using script to delineate such forms. The flexibility of the Arabic letters allow themselves to be bent and extended in a way which is impossible with other alphabets. It is an original handmade artwork on paper with a flying bird as the subject.