The term conventional catalog means an edition which, in addition to catalog processing, contains: introduction, preface, summary with translation into a foreign language, study (one or more texts) relating to the events, persons, phenomena, etc. The catalogs of the museum collections are very numerous and are marked by the exceptionality and quality of the texts and the accompanying illustrative material. These catalogs are often the result of many years of professional and sometimes scientific efforts of curators, other museum experts and their associates to create detailed lists and descriptions and documentation of museum holdings. Librarians, documentarians, computer scientists, economists are equal participants in museum activities with indigenous areas of work. With their arrival, the museum becomes available to the public at all levels from professional to entertainment, with the central position of the collection changing, but not losing. A large number of museums have a library that supports and monitors the basic activities of the museum and provides employees with its fund and services of scientific research and professional work. With its professional staff and information sources, the Museum Library supports the development of the museum's publishing activities. The museum catalog is one of the most numerous publications published by the museum, and the introduction of digital media and availability on the web have enabled the momentum of this type of museum publications. Published catalogs of museum collections also bring accompanying photographs, as well as documentation on exhibitions and a bibliography with each item. The qualities of the catalogs of museum collections are contributed by the accompanying indexes and the multilingualism of their production. Exhibition catalogs are informative, educational and documentary companions of the exhibition. Scientific research work has an important role in order to better achieve the purpose of the museum and is an important museum activity. Professional and scientific work in museums is inseparable from the daily performance of museum activities by all its professional employees, and museums are publishers of scientific and professional catalogs, journals and anthologies. The catalog is what remains after the closing of a thematic exhibition or in the impossibility of insight into a collection. It is a permanent record and source of information and ideas and represents much more than listing the exhibits and listing their material features. A quality catalog complements the exhibition, making it complete and remains a permanent testimony to it. Museum publications reflect the role of museums in disseminating knowledge and play an important role in placing museum collections in a broader context. Important features of a museum publication are the mobility or independence of the museum space and the static mode of museum presentation and the possibility of choosing the medium to be used. The scientific function of the museum includes research in the museum and the scientific parts of the museum such as the library, laboratory and documentation center, museum documentation such as the inventory book and database, and museum publications. Research activity in the museum is one of its most important tasks, along with the collection, storage and presentation of museum objects. Scientific research work in natural history, archeology and history museums has a very important role in achieving the purpose and function of these museums and is an important indicator in assessing the activities of the museum as a scientific and educational institution. Scientific catalogs are published after the research of a certain topic or author, and their goal is to publish the results of research based on the processing of papers. This analysis leads to certain scientific findings or extensive catalog processing. Scientific research work in natural history, archeology and history museums has a very important role in achieving the purpose and function of these museums and is an important indicator in assessing the activities of the museum as a scientific and educational institution.