caption: The image shows Rembrandt van Rijn's self-portrait of a man wearing a hat and holding a book. The paper he is holding has text written on it, likely the artist's signature. The man is depicted with a serious expression on his face, and his hands are clasped in front of him. He is wearing a black hat with a white band around the crown, and a white shirt underneath. His hair is dark and his eyes are focused intently on something in the distance.