Preface The Workshop “Extending, Mapping and Focusing the CRM” was organized in the framework of the 19th International Conference on Theory and Practice of Digital Libraries (TPDL), on the 17th September 2015, in Poznan, Poland. The goal of the workshop was to present, discuss and assess the developments of the CIDOC CRM in the Cultural Heritage domain. The importance of CRM in heritage-related digital libraries and dataset infrastructures is confirmed by the increasing number of cultural heritage institutions and research projects adopting CRM and its extensions to foster datasets interoperability. The CfP was open to scholars contributing to the development of CRM extensions and applications as well as to researchers who are currently using and adapting CRM to specific domain needs. Authors were invited to send their contribution and results on the following (and related) topics: – CRM extensions for special uses – Using the CRM in specific domains or subdomains – Mapping existing metadata schemas to the CRM – Mapping repositories and tools – CRM and other documentation standards – Using CRM for gazetteers and thesauri – Using CRM in Linked Data – CRM and Natural Language Processing – Formalization of CRM – Querying, searching and faceted browsing of CRM repositories – Reasoning with CRM The organization of the papers and the reviewing process was simplified by the tools provided by EasyChair. I take this opportunity to thank the organizing committee for organizing such a successful event and the program committee members for their invaluable contri- bution, providing helpful, informative and timely reviews for all the submissions. My deepest thanks go to all the people who contributed and attended the work- shop, without their submission and participation this workshop would not have been possible. Finally, I gratefully acknowledge the ARIADNE project (funded by the Eu- ropean Commission under the Community’s Seventh Framework Programme, FP7-INFRASTRUCTURES-2012-1-313193) for the funding sources that made the organization of the workshop possible. Paola Ronzino (Editor) Organizing Committee Franco Niccolucci (PIN, Italy). Workshop Chair Martin Doerr (FORTH, Greece) Sorin Hermon (The Cyprus Institute, Cyprus) Program Committee Chryssoula Bekiari (FORTH, Greece) Ceri Binding (University of South Wales, UK) Paul Cripps (University of South Wales, UK) Øyvind Eide (University of Passau, DE) Achille Felicetti (PIN, Italy) Reinhard Foertsch (DAI, DE) Gerald Hiebel (University of Southern California, CA/University of Innsbruck, Austria) Carlo Meghini (CNR-Nemis, Italy) Dominic Oldman (British Museum, UK) Christian-Emil Ore (University of Oslo, Norway) Paola Ronzino (PIN, Italy) Maria Theodoridou (FORTH, Greece)