This book offers a practical guide about how to build digital repositories from the basics, i.e. planning, software, acquiring, preservation, metadata formats, harvesting, access management, and discovery. The authors focus on well-established technologies (XML, XSLT, JSON) and metadata schemes (MARC, DC, METS) rather than cutting-edge implementations like IIIF or Linked Open Data (though there are sections on those technologies). In conclusion, they provide a general and pragmatic framework for most of digital libraries.