caption: The image shows an open book with a drawing of a floor plan of a building, which is the plan of the Palazzo dei Palazzos dei Giacomo e Piedale Balli. The plan is detailed and shows the various rooms, hallways, and other features of the building. The text on the book provides further information about the layout of the plan, such as the number of rooms, the size of each room, and the location of the windows and doors.