Abstract: 【Purpose/significance】The explosive growth of academic document resources has brought difficulties to traditional reading
activities, and also put forward new requirements for the organization and service of STM books. Book annotation framework is a stan⁃dardized representation of book content and form, which is of great significance for solving the deep indexing and knowledge associa⁃tion of books.【Method/process】Firstly, we clarified the construction principles of annotation framework of STM books from user needs. Then, we designed the entity object and semantic relationship of the annotation framework from four dimensions: physical fea⁃ture, content feature, enhancement feature and usage feature. Finally, we demonstrated the process of using this framework for knowl⁃edge modeling and representation of STM books. And the usability of the annotation framework of this paper is verified through appli⁃cation cases.【Result/conclusion】The annotation framework in this paper has the characteristics of demand driven, multi-dimensional disclosure, deep description and semantic association, which is of reference value to support the upper services of STM books.【Innova⁃tion/limitation】This paper designed the annotation framework of STM book resources, and selected application examples to explore its
knowledge revealing and expressing capabilities, but it did not conduct further application research on annotation results from the per⁃spective of knowledge services.