This book constitutes the refereed proceedings of the 28th International Conference on Linking Theory and Practice of Digital Libraries, TPDL 2024, held in Ljubljana, Slovenia, during September 24-27. The 13 full papers, 19 short papers and 11 papers of other types included in this book were carefully reviewed and selected from 83 submissions. Over the years, TPDL has established itself as an important international forum focused on digital libraries and associated technical, practical, and social issues. In 2024, TPDL expanded its scope to prominently include Document Analysis/Recognition and Information Retrieval, acknowledging the vital role of those research areas in the creation (by means of digitization and information extraction from heterogeneous sources), access, discovery, and dissemination of digital content.