The final paper will analyze the contribution of Eva Verona to the development of the Croatian librarian community and systemize the history of librarianship and books in the life and work of the Croatian librarian Eva Verona. The aim of this paper was to investigate the influence of Eva Verona on Croatian and international librarianship. During the research for this paper, the most used sources were Eva Verona's manual A Code and manual for compiling alphabetical catalogues, the scientific monograph The History of Libraries and Librarianship in Croatia by Josip Stipanov and the Portal of Croatian scientific and professional journals – Hrčak. The history of Croatian librarianship goes back to the Middle Ages, when Roman cities existed in today's Croatia. In addition to Roman influence, the development of librarianship was influenced by numerous ecclesiastical and monastic orders. With them began the development of not only librarianship, but also schooling and education in Croatia. Throughout the Middle Ages and the New Age, Croatian librarianship went through many periods of prosperity and decline, but with the research of Eva Verona, it made the small Croatian librarian community famous. Although Verona is unknown to most people, she is a great role model to librarians, and for a reason. She has revolutionized librarianship with her expertly written manuals on alphabetical catalogs, cataloging, and corporate designations. She was also one of the founders of the professional journal Vjesnik bibliotekara Hrvatske, in which she edited and wrote over a 100 papers. By reading her works and the works written about her, we can conclude that she did not see librarianship as a job, but as part of her daily life, to which she laid the groundwork for further development.