over a thousand years of time, most languaes changed at a great rate, but arabic keep close to the language of the age when Koran is descended in arabic. because of this, there are various forms of arabic like classical arabic, morden standard arabic and various spoken arabic dialects. This confuses beginners a lot. For example, I bought a book from the shop in my city and learned from it more or less. I was anxious to speak in arabic and tried to converse with people and then What I have learned was always different from what the arabs here speaks. And so I lost some interest in learning my book. However, there are too little books on arabic language course, and all the same. So I tried to learn from net and learned about the variety of arabic. And now I think I have to be good at Standatrd Arabic which is written everywhere, in books, in websites and so on.