He had hoped his chair(s) would go on to be mass-produced, not hand-crafted. As a matter of fact, he had hopes that much of his furniture would be mass-produced--he aimed for simplicity in construction. The pieces of wood that comprised the Red Blue Chair were the standard lumber sizes readily available at the time.
Both created art using the renaissance
Calligraphy is an art form that combines writing with art. In islamic culture it is used everywhere, from kitchenware such as plates and vases to holy places in writings and wall art.