The image shows a diagram of three cubes labeled 1, 2, and 3, arranged in a row. Each cube is depicted as a square with various colors filling its faces. The cubes are meant to represent a tesseract, with red, white, and yellow axes in space. The lower line shows the three rear faces with the interior being removed. **Cube 1:** - Top face: White - Right face: Yellow - Front face: White - Left face: Orange - Bottom face: Null - Back face: Light Yellow - Interior: Ochre **Cube 2:** - Top face: Light Blue - Right face: Green - Front face: Light Blue - Left face: Purple - Bottom face: Blue - Back face: Light Green - Interior: Light Brown **Cube 3:** - Top face: White - Right face: Yellow - Front face: White - Left face: Orange - Bottom face: Null - Back face: Light Yellow - Interior: Ochre Each face of the cubes is labeled with its color. The diagram also includes labels 'n.', 'bl.' and 'interior' indicating different aspects of the cube's representation. Below the cubes, there is text that explains the diagram as a representation of a tesseract with red, white, and yellow axes in space. The lower line shows the three rear faces with the interior being removed.