Book poster design requirements: 1. At the beginning of design, we should know the readers, master their psychology, and design poster works that conform to their psychology. 2. From the design point of view and direction, considering the characteristics of books and the current application crowd, designers hope to help readers get good cognition through visual communication and achieve the purpose of information dissemination. 3. Consider its use in different carriers or environments, such as in printed matter. In order to facilitate mailing and carrying, smaller posters are needed.