His prints have similar subjects to his paintings, although the twenty-seven self-portraits are relatively more common, and portraits of other people less so. There are forty-six landscapes, mostly small, which largely set the course for the graphic treatment of landscape until the end of the 19th century. One third of his etchings are of religious subjects, many treated with a homely simplicity, whilst others are his most monumental prints. A few erotic, or just obscene, compositions have no equivalent in his paintings. He owned, until forced to sell it, a magnificent collection of prints by other artists, and many borrowings and influences in his work can be traced to artists as diverse as Mantegna, Raphael, Hercules Seghers, and Giovanni Benedetto Castiglione.