For instance, draw a quick outline of a cat, type “spacesuit,” and voila! You’ve got a picture of a cat in a spacesuit. Or maybe you’re imagining your dream home—just sketch a facade ...

Adriano Marinazzo, scholar-in-residence at the Muscarelle Museum of Art at the College of William & Mary, has discovered what he believes to be Michelangelo’s first sketch of the Sistine Chapel. After ...