In the midst of a technological revolution centered on internet and digital technology, traditional publishing is experiencing significant transformation, giving rise to "book interpretation" programs on knowledge payment platforms, exemplified by "Fan Deng’s Book Club" (樊登读书). These programs represent a new publishing form and model that utilizes "storytellers'" secondary creation to transform complex and abstruse book content into easily understandable and shareable audio-visual products, effectively meeting the public's demand for efficient knowledge acquisition in a fast-paced era. However, this business model, built upon original works, faces potential copyright law disputes due to its distinct creation methods, dissemination channels, and commercial objectives, necessitating clear legal boundaries. The development of book interpretation programs on knowledge payment platforms fundamentally involves deconstructing, reorganizing, and reinterpreting original works, creating an independent expression that both depends on and innovates beyond the source material. Unlike the academic dissemination path of traditional book reviews, this "book-telling" model leverages the multi-modal narration and instant feedback mechanisms of digital media, facilitating market scalability while complicating control over the "expression reproduction" of original works, thereby potentially raising multiple copyright ownership concerns and commercial infringement risks. Determining whether book interpretation content constitutes an original work requires judgment based on the "idea-expression dichotomy" regarding its reproduction level of the original works. Replication of case systems or core methodological frameworks may constitute expression infringement. For derivative works involving transformative use (such as in-depth commentary or structural reorganization), assessment through the "three-step test" is essential to determine whether they substantially replace the original work and to ascertain the boundaries of fair use application in specific contexts. Concurrently, knowledge payment platforms, as responsible entities for content dissemination, must implement robust copyright governance mechanisms, including the legitimacy of the authorization chain, the reasonableness of content review processes, and dissemination risk control. Platforms should enhance creative process oversight to ensure that derivative works add value through theoretical extension and case innovation, rather than pursuing traffic-driven content. In the context of technology-enabled new forms and models of publishing, legal applications must balance creative incentivization with knowledge dissemination to promote both cultural innovation and copyright protection. Copyright regulations for "book-telling" programs should avoid overly broad interpretations of "expression" while preventing excessive expansion of fair use that could compromise the interests of creators. New forms and models in traditional industries should dynamically define the scope of protection for different types of works to balance knowledge dissemination efficiency with copyright protection needs. Analysis of book explanation programs' content production mechanisms on knowledge payment platforms reveals the fundamental tension between the demands of cultural dissemination and protection under technological empowerment, thereby offering insights for judicial standards and industry guidance for new forms and models.