In Man sitting at a desk, we see a solitary man engrossed in his work. The colors are muted, with browns and greens dominating the palette. He is surrounded by stacks of books and scattered papers, creating a sense of a busy intellectual environment.

The lighting is soft, suggesting a quiet, contemplative mood. The painting is executed in oil on canvas, showcasing Rembowski's attention to detail. The textures of the books and the man's clothing are rendered with precision. The composition draws the viewer's eye to the figure at the desk, emphasizing his isolation in this scholarly setting.

The overall effect is one of realism, capturing a moment of quiet study. Jan Rembowski was known for his genre scenes that often depicted everyday life. This particular work reflects the intellectual pursuits of the late 19th century. An interesting fact about this painting is its focus on the solitary figure, which contrasts with the bustling society of the time.

Rembowski's ability to capture such moments makes this work notable within his oeuvre.