In Automat, Edward Hopper presents a solitary woman seated at a table in a diner. The color palette is dominated by muted tones of green and yellow, creating a sense of isolation. The woman appears lost in thought, with her gaze directed downward, emphasizing her solitude.

The diner itself is sparsely populated, enhancing the feeling of loneliness in the scene. The painting is created using oil on canvas, a medium that allows for rich texture and depth. Hopper's technique involves smooth brushwork that captures the play of light and shadow, particularly on the woman's face and the diner’s surfaces. The dimensions of Automat are approximately 76.2 x 101.6 cm, making it a sizable work that draws viewers in.

The composition is carefully balanced, with the woman positioned centrally, surrounded by the diner’s geometric forms. Edward Hopper was known for his exploration of modern American life, often highlighting themes of solitude and introspection. Automat reflects this focus, showcasing a moment of quiet contemplation in a bustling urban setting. An interesting fact about this work is that it was painted in 1927, a time when American society was experiencing significant changes, including the rise of urbanization.

Hopper's ability to capture these moments of stillness amidst the chaos is what makes this painting particularly compelling.