[Purpose/significance]This paper systematically sorts out relevant researches on digital reading behavior at home and abroad, summarizes the research status, and provides references for future researches in this field.[Methods/process] This study took Web of Science database and CNKI as data sources, selected relevant literatures from the database, and drew a knowledge map of digital reading behavior domain with a visual method to analyze the research topics in this field.[Results/conclusion] The results show that digital reading behavior of the related research can be roughly divided into theory study, behavior research, influencing factors and strategies for four categories. After analyzing the hot topics, it is found that the field has a wide range of research topics but is not highly interdisciplinary, and the application of emerging methods and tools is not high in China. In the future, this field still needs to strengthen cross-domain cooperation and strengthen the introduction of various cutting-edge research methods and technical tools.

In recent years, digital reading has gradually surpassed paper reading as one of the main reading methods. The digital reading industry has thus developed a complete industrial chain, and the entire industry is in the stage of industrial upgrading.This study conducts a network survey on the digital reading progress of Chinese libraries, enterprise suppliers and commercial platforms, and understands the problems existing in China's digital reading industry. On this basis, it proposes countermeasures for the development of the digital reading industry.

Based on the interview data of 21 digital youths, this study constructs a grounded theoretical framework for the influencing factors of digital youth internet reading using the grounded theory research method. The framework covers the three stages of digital youth reading using the internet, involving 3 the adjustment relationship, a causal relationship, profoundly demonstrates the relationship between the psychological influence factors of digital youth internet reading, and provides reference and reference for the society and related internet reading service subjects in theory and practice.

Digital technology brings more possibilities for the service mode of public libraries, and also challenges the existence of entity space of public libraries. Combining digital technology to construct library entity space for digital reading can provide a feasible development path for library space reconstruction and space service. Based on the concept of digital reading space, this paper analyses the meaning, demand of digital reading space, and puts forward the idea of rebuilding the entity space of public libraries for digital reading from the perspective of space theory and practice.

With the continuous increase in the contact rate of digital reading methods, digital reading has gradually become the mainstream reading method. College students, as a group with a higher level of education, are the main groups to receive, spread, and enjoy digital reading. They often use informal groups such as interest groups, book clubs, and fellow villagers in the digital reading process. The establishment of informal groups, the dissemination and interaction of reading content have a significant impact on the effect of digital reading. In this regard, the author uses "digital reading" as the starting point and adopts action research methods to explore the strategies for guiding the informal group development of college students in the process of digital reading from the perspective of group dynamics.

E-learning changes the traditional educational role of national libraries and reshapes the mode of the e-learning for library users and librarians. With investigation of the NLC's e-learning programs, this paper is aimed at analyzing the problems faced with the public library trainings and providing guidance to the innovation of the e-learning programs. This paper provides a general picture of the NLC's e-learing program by analyzing the system, contents as well as the innovative schemes. It brought up the trends of the public library e-learning and librarian training.

To provide references for the further study in Big Data, based on the articles collected in 26 journals in the field of Library and Information Science, using Citespace, SPSS and Netdraw, authors, institutions and keywords frequency of the articles were analyzed by applying co-occurrence and multivariate statistical analysis method. The results show that the research of Big Data in Library and Information Science of China mainly focuses on five aspects: government data opening, personalized service, data literacy, data mining and data visualization.

In the era of knowledge economy, scientific and technical innovation needs the support of scientific and technical information service. The university library makes full use of scientific and technical information resources to exert the complementary effect of knowledge to improve the competitiveness. This paper analyzes the present situation of scientific and technical information service of university library from the perspective of supply chain, and constructs the evaluation index system of scientific and technical information service ability of university library through expert investigation method and analytic hierarchy process. The main influencing factors include the application of big data technology, the value and coordination of information content, etc. Therefore, the service ability of university library should be improved from the technology, content and consciousness innovation of scientific and technical information.

The mode of general library and branch library has attracted the attention of libraries at home and abroad for its effective co construction and sharing benefits. The system of general library and branch library emphasizes the unified allocation and utilization of resources within the system, pays attention to the co construction and sharing of literature resources, and has higher requirements for the construction and allocation level of literature resources. In accordance with the transformation of the role of the Library under the environment, this paper actively explores the optimization strategy of the acquisition of literature resources, combines theory with practice, explores the unified and reasonable allocation and utilization of the literature resources of the general and branch libraries in the system, gives full play to the advantages of new technologies in the acquisition of literature, develops new ideas of the acquisition of literature resources of the general and branch libraries, and improves the construction level of literature resources.