The image displays a mobile screen showing a shopping app interface. The app is called "Sinh Sách Black Friday" and features a promotional banner with a red background and white text. The banner includes a discount code "SAVINGS" and a message encouraging users to save money on their purchases. Below the banner, there is a list of products with images and names, including a book titled "Đọc và học" (Reading and Learning). The app also has a navigation bar at the top with icons for home, search, and other options. The overall design suggests that it is a digital bookstore or e-commerce platform offering discounts during the Black Friday sale.