The image shows an open book with several pages visible. The first page features a red banner at the bottom, and there is a red ribbon or banner on the left side of the page. The text on the pages appears to be in Chinese characters, and there are some diagrams or illustrations on the left side of the page. The second page has a white background with black text, and there is a red banner on the right side of the page. The third page has a white background with black text, and there is a red banner on the right side of the page. The fourth page has a white background with black text, and there is a red banner on the right side of the page. The fifth page has a white background with black text, and there is a red banner on the right side of the page. The sixth page has a white background with black text, and there is a red banner on the right side of the page. The seventh page has a white background with black text