caption: The image shows an engraving of a man in a black robe holding a book, with the text "Portrait of Sir Isaac Watts, D.D." at the bottom. The man is wearing a black dress and has a serious expression on his face, suggesting he is deep in thought. His hair is dark and his eyes are focused on something in the distance. The book he is holding is open, and the text is written in a neat, cursive font.