This book constitutes the refereed proceedings of the 18th International Conference on Asia-Pacific Digital Libraries, ICADL 2016, held in Tsukuba, Japan, in December 2016. The 18 full papers, 17 work-in-progress papers and 7 practitioner papers presented were carefully reviewed and selected from 71 submissions. The papers cover topics such as community informatics, digital heritage preservation, digital curation, models and guidelines, information retrieval/integration/extraction/recommendation, privacy, education and digital literacy, open access and data, and information access design.