The image is a portrait of a man shown from the waist up. He is facing the viewer with his body slightly turned to the right, and he holds an open book in his left hand. The man has defined facial features including a pronounced mustache and a neatly trimmed goatee. His dark hair is wavy and parted to the side, covering his ears and extending slightly down the nape of his neck. He is wearing a dark, buttoned coat and a white collar that is prominently displayed over the coat. The background is a simple, textured surface without any distinct elements. The text at the bottom identifies him as Johannes Hoornbeeck.