caption: The image shows a page from a book with a drawing of a circular object on it. The paper is filled with various diagrams and text, providing detailed information about the object. The drawing is composed of a series of concentric circles, each with its own unique shape and size. The circles are arranged in a symmetrical pattern, with the largest circle in the center and the smaller circles radiating outward. The text on the paper is written in a neat and organized manner, making it easy to read and understand.