In Portrait de A. Cassabois, Gustave Caillebotte captures a seated figure, A. Cassabois, dressed in formal attire.

The color palette is dominated by muted earth tones, with soft highlights that create a sense of depth. The background is subtly blurred, drawing attention to the subject's face and expression. Cassabois's gaze is direct, inviting the viewer to connect with his character. The painting is executed in oil on canvas, a common medium for portraits of this era.

Caillebotte's brushwork is precise, showcasing his skill in rendering fabric textures and facial features. The dimensions are approximately 65 x 81 cm, making it a relatively large portrait. The composition adheres to the conventions of Realism, focusing on the accurate depiction of the subject. Gustave Caillebotte was a prominent figure in the Impressionist movement, though he often leaned towards Realism in his portraits.

This work, painted in the 1880s, reflects his interest in capturing the individuality of his subjects. An interesting fact about this painting is that it was part of a private collection, which has kept it relatively unknown to the public eye. Caillebotte's ability to blend realism with a touch of Impressionist influence is evident in this portrait.