The great Renaissance artist Andrea del Sarto (1486-1530) rivals Leonardo da Vinci as one of history's most accomplished draftsmen. Moving beyond the graceful elegance of his contemporaries, such as Raphael and Fra Bartolommeo, he brought unprecedented realism to his drawings through the rough and rustic use of chalk in his powerfully rendered life and compositional studies. With an immediacy few other Renaissance artists possess, del Sarto's work...