well, no offense but, this work has nothing to do with Iranian inventions. the arabic calligraphy used in this work is a tughra. a tughra is a signature of Ottoman sultans. I will not call this "Iranian Typography" just because they invented Arabic typeface, yet I doubt the story can be summed like this. Considering all of the alphabets used in Arab, Iranian and Turkish geography, we cannot distinguish the inventor of the typefaces that easily. Aramaic, Hebrew, Syriac, Arabic and even older alphabets. I do not believe one iranian guy came along and designed a typeface and then many of those peoples started to use "just the same thing". The tughras are Ottoman (Turkish) inventions, so this work is a mesh of Latin-Gothic and Ottoman. Thank you.