1. History of library information service: The development history of library information service can be traced back to ancient times, but the development of modern library information service can be divided into two directions: library science mainly studies the organization, management and service of libraries, and information science mainly studies the collection, collation, analysis and dissemination of information.
2. Library and information service institutions: Library and information service institutions include libraries, archives, museums, art galleries, science and technology museums, cultural centers and digital libraries. All kinds of institutions have their own characteristics and clients, but they are all committed to the collection, collation, dissemination and service of information resources.
3. Library science and information science professionals: Library science and information science needs professionals engaged in the research and practice of library science and information science. Professionals include librarians, archivists, museum librarians and digital librarians.
4. International library and information organizations: There are many international library and information organizations, such as IFLA, IFLA and ICOM. These organizations are committed to promoting the exchange and cooperation of library and information services in various countries.
5. Digital development of library and information industry: With the continuous development of information technology, the library and information industry is also developing in the digital direction. Digital libraries, digital archives and digital museums have gradually become an important part of the book information industry. The development of digitalization makes the acquisition and utilization of information resources more convenient and fast.