The work of the Sixth World Professional Forum “The Book. Culture. Education. Innovations” (June 5–13, 2021, Sudak, Republic of Crimea, Russian Federation) is reviewed; its themes and topics are discussed: library mission in the digitization era; pandemic impact on libraries; prospects for library and information community; national information systems; libraries collaboration with research and educational organizations; modern competences of library specialists; partnerships of national libraries, etc. The focus is made on the following events: The Twenty Seventh International Conference «Libraries and information resources in the modern world of science, culture, education and business», The Third Scientific and Educational Symposium “Building and developing the modern digital environment for education and science”; The Fifth Industry Conference “Book publishing and libraries: Vectors of cooperation”. The authors also give overview of discussions and presentations at the open press conference, the work and conclusions of the central discussion site, Day of Crimean Libraries, Day of Rospatent, The Third Scientific Conference “Scientometrics, bibliometrics, open data and publications in science”, The Third International Conference on the global ecological problems, the research and practice events held within the framework of the Forum, as well as the opening and closing ceremonies, and Forum plenary session.