caption: The image shows an open book with a drawing of a man on horseback, surrounded by text and pictures. The man is wearing a traditional Japanese outfit, with a long robe and a hat, and is holding a sword in one hand and a shield in the other. He is standing in a field of tall grass, with trees in the background and a bright blue sky above. The text on the book is written in Japanese characters, and the pictures are detailed and lifelike.