Thanks for all your comments , well regarding how I learned it ......at first I loved this art very much and intended to learn it I began to search for calligraphy books that concerned on this art , I found some , it tried to trace each letter ...but I found out that should need someone who are specialized and expertise in this art to help me , because I needed someone to tell me how should I start and end the letter ( its writing direction ) , the intact way to hold the reed-pen , the reed pen angle that match each Arabic calligraphy styles ( they are 6 styles ), and the best writing papers and ink should I use . The important thing , I found a calligrapher to adjust my writing and tell me the hints and defects. He told me to join Arabic Calligraphy Institution in Cairo . I have got a diploma in Arabic calligraphy and gilding , I have studied this art for 6 years.
The key point in learning calligraphy is your motivation to learn this art , and patience as well.
In Arabic calligraphy there are about 6 script styles : Naskh- Reqaa - Thuluth - Nastaliq - Dewani - Kufi .
I have attached the image to see them.the writing is one sentence " Besm Allah Al Rahman Al Rahim " it means "In the name of Allah, Most Gracious, Most Merciful " .
The two formal styles that we use in our writing are Naskh and Reqaa ones ( we use them our schools and universities) here in Egypt - but "Nastaliq" is a formal style in Iran , Pakistan,Afghanistan.