libraries in the period. The opening portion elaborates on the rationale behind the design of the classification system, initiated by Dewey in 1873. It describes the fundamental structure of the system, which divides knowledge into ten primary classes, each further subdivided into divisions and sections, all assigned unique numerical identifiers. Dewey emphasizes the importance of categorizing books by their content rather than their format, ensuring that related materials are grouped together for easier access. As libraries grow, this system allows for flexible reorganization without the need for constant re-cataloguing, thus enhancing library efficiency and user experience. (This is an automatically generated summary.)