This work presents a comprehensive guide to the principles and practices of creating a dictionary catalogue for libraries. It discusses various entry methods, including author, title, and subject entries, and emphasizes the importance of systematic organization and clarity in cataloguing. The text outlines different types of catalogues, such as short, medium, and full-title catalogues, and provides detailed rules for each category. It also addresses the need for flexibility in cataloguing practices to accommodate different library types and user needs. The author encourages feedback from librarians to improve future editions, highlighting the evolving nature of cataloguing standards.