Unlike western art, Islamic art is difficult to separate into different styles. That's because, for the most part, artists in countries influenced by Islam continued to follow traditional methods. Western artists, on the other hand, have periodically rebelled against tradition and created radically new styles – abstract art, for example.
That's not to say Islamic art isn't innovative. Artist's tended to put their new ideas in the detail, which isn't always noticeable at first. See the paintings and read more