I think that the best answer is Albrecht Durer. Durer published books on mathematics and proportions, and additionally he was an artist using the techniques of painting, drawing and printing.
Describing the problem is the first step in the basic structure
of a persuasive speech.
As of 2010, there were an estimated 1.6 billion<span> Muslims around the world, making Islam the world's second-largest religious tradition after Christianity.</span>