caption: The image shows an open book with Chinese writing on it, depicting a map of the mountains of the Tokaido region. The map is detailed and intricate, with the mountains stretching out in all directions and the text written in a traditional Japanese script. The colors used are mostly shades of blue and green, with some yellow and white accents. The text is written in black ink, and the mountains are depicted in a realistic style, giving the image a sense of depth and texture.