This book constitutes the refereed proceedings of the 5th European Conference on Research and Advanced Technology for Digital Libraries, ECDL 2001, held in Darmstadt, Germany, in September 2001. The 38 revised full papers presented were carefully reviewed and selected from 79 submissions. The papers are organized in topical sections on user modeling; digitization, interpretation, and annotation of documents; knowledge management; data and metadata models; integration in user communities; information retrieval and filtering; multimedia system; and multilinguality.