Aim. This paper aims to consider the concept and perception of digital transforma- tion on the example of the Bogdan Ogrizović Library and Reading Room in Zagreb, which represents one of the key focal points of the social and cultural life of the city of Zagreb. Approach/methodology/design. The paper presents the results of a research con- ducted using a quantitative research method with the help of a survey on a convenient sample of respondents. Results. The conducted research has confirmed the hypothesis that the users per- ceive changes in the library’s services and holdings caused by the changes in infor- mation and communication technology, which is one of the manifestations and tools of digital transformation with regard to library’s operations and the users’ perception of the library. More than half of the respondents stated that they perceive the library equally in terms of library materials, space, and services. In each of these categories, the respondents perceive the library most through library materials, then somewhat less as a space, and least through services. The users see the library of the near future as an institution that provides a combined service: in digital and paper format, which indicates a balanced approach to library development and implies that the digital sphere will not abolish the paper one, at least not in the near future. The librarians are also expected to possess not only the professional knowledge, but also communication and IT skills. In general, the respondents are aware of the existing changes in the library, but they expect additional changes, new contents and services in the digital form. Limitations. The results of the research are limited by the number of respondents and the sample and cannot be generalized to the entire population of users of the City of Zagreb Library network (which also includes the Bogdan Ogrizović Library and Read- ing Room). Despite this fact, the research results are an important indicator of changes in public libraries under the influence of information and communication technology, which requires continuous research. Practical application. The results of the research can be applied when creating stra- tegic and operational (annual) work plans of the public library where the research was conducted, as well as in other public libraries. Social significance. The results of the conducted research provide an insight into the work of one of the most popular public libraries in Zagreb, which contributes to better knowledge of the work of public libraries in general and their greater visibility in society. Originality/value. The paper presents the original results of the research on public library users in a period of great economic and social changes in which libraries also participate by (digitally) transforming their services, thus trying to attract new users, primarily the younger generation who are increasingly oriented towards digital media on the Internet.