PurposeIn this information age, demonstrating the significance of physical libraries is increasingly important. The roles and functions of libraries have been discussed using the concept of the library as place in interdisciplinary perspectives. However, the overall structure of the concept is inadequate because there are multifaceted arguments; how the concept has changed is not clear either. The purpose of this study is to clarify the whole picture of the roles and functions of the library as place in public libraries and to show the transition of the roles and functions.Design/methodology/approachQualitative content analysis and time-series analysis were conducted using 175 related articles that mentioned the roles and functions of the library as a place.FindingsAn overall of 2,966 codes about library as a place was extracted and organised into a conceptual model, comprising 3 symbolic infrastructures (Wisdom, Heritage and Community), 11 categories (Intelligence, Creativity, Novelty, Culture and History, Neutrality, Equality, Empowerment, Publicness, Privacy, Sociability and Friendliness) and 30 subcategories. The study found that concepts of the library as place have developed rapidly since the 1990s, and roles have diversified from traditional ones.Originality/valueThe conceptual model of the library as place in this study, which integrates diverse perspectives such as physical spaces, activities and symbols, is the first of model's kind.