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The purpose of this research is to map and analyse the conceptual and thematic structure of library and information science (LIS) research from the perspective of the co-word analysis. The bibliographical records consist of all the research papers published in the LIS core journals between 1990 and 2016 and indexed in Web of Science. ‘CiteSpace’ was used to visualise the co-word network of LIS studies. The frequency of co-occurrence and centrality scores in the overall structure of the field showed that the word ‘Science’ is the most significant and pivotal keyword among the nodes in the co-word network of LIS literature, and in this respect, the word ‘Library’ is in the second place. However, the results of the social network analysis uncovered that in spite of the high frequency of the word ‘library’, the pivotal role of the term has been exposed to decline over the time. The results of the analysis of co-word clusters showed that ‘information seeking and retrieval’ is the most important research focus in the intellectual structure of LIS literature during 1990–2016. Also, analysis of the hot spots of the LIS research based on Kleinberg algorithm indicated that the words ‘Internet’ and ‘World Wide Web’ have attracted the most attention by LIS scholars during the years under study.

This research concerns determining authors’ scientific influence in library and information science research and their impact on the intellectual structure of the discipline by means of integrative indicators of the Scholarly Capital Model and co-authorship patterns. Research records comprised articles published from 1945 to 2016 in library and information science core journals and indexed in Web of Science. CiteSpace (software for visualization of scientific patterns and trends) was employed to map the intellectual structure of library and information science research based on co-authorship patterns. The results showed that the top 10 authors of library and information science research with the highest scores in terms of influence indicators (except for one person) were mostly concerned with the field of scientometrics which can be considered as the special impact of scientometric authors on the intellectual structure of library and information science research especially in recent years. Based on the results of the research, integrative use of scientometric indicators for measuring authors’ level of scholarly influence may grant a more precise perspective for decision makers in the field of library and information science.

The main objective of this study is to explain how to increase user loyalty behavior to public library services. This study uses a qualitative method based on grounded theory. The research population included users of public libraries in Iran. The data were collected through in-depth interviews, and the theoretical saturation was obtained after interviewing 24 members of public libraries. The collected data through interviews were analyzed using theoretical coding and content analysis. Results indicated that observing moral and humane principles when dealing with library users plays a significant role in both building user loyalty to the library and attracting new users. In addition, it was found that causal conditions in increasing loyalty among public library users are related to four areas including physical space management, information resource management, human resource management, and information technology management. It was also noted that factors such as service quality, proper design of interiors, providing diverse and updated information resources, the use of new communication technologies, and the use of cyberspace and social network applications must be taken into account by public libraries. Building loyalty among users and members of public libraries in today’s technological world is of high importance, as it will guarantee the repeated and more frequent use of public libraries and their services and thus reflect their positive effects. The loyalty of users of libraries and information centers can be based on perceived quality, effective communication between librarians and users, and satisfaction with services offered by libraries and their staffs and can affect the intention for repeated visits, and the use of library service and preferring a library over other libraries.