In 13th - 14th centuries, the number of authors, scribes, book-makers and book-painters increased considerably and consequently. Transcription, book-making and book illuminating centers were established in Iran and other Islamic countries. Some Arabic and Persian books and treatises were authored on the procedures of writing, transcribing, corresponding, painting, illuminating, writing scripts and so on during 9th -10th centuries. By glancing at Islamic manuscripts, it can be argued that many manuscripts were transcribed in three main transcription centers: A) Court transcription centers...