The image is a black poster with white text that reads "Why Does the Moon Always Keep the Same Side Toward Us?" The poster is divided into six sections, each with a different color circle representing a different phase of the moon. The circles are arranged in a grid-like pattern, with each circle representing one phase.

The first section is titled "The Moon" and has a title in Chinese, followed by a brief description of the phase. Below the title, there is a subtitle in English that explains why the moon always keeps the same side toward us. The second section has a list of the phases, with the first phase being the largest and the second phase being smaller. The third section has an illustration of a planet with a red circle around it, representing the moon's surface. The fourth section has two phases, one with a blue circle and the other with a yellow circle. The fifth section has three phases, the sixth phase, and the seventh phase.