The De Gruyter Handbook of Digital Criminology examines how digital devices spread and cut across all fields of crime and control. Providing a glossary of key theoretical, methodological and criminological concepts, the book defines and further establishes a vibrant and rapidly developing field. At the same time, Digital Criminology is not only presented as a novelty, but also as a continuation of the discipline's history. Each chapter can be read as a free-standing contribution or texts can be combined to gain a more holistic understanding of Digital Criminology or to design a research project. Expert contributions vary from Criminology, Sociology, Law, Science and Technology Studies, to Information Science and Digital Humanities. Together, these supply readers with rich and original perspectives on the digitization of crime and control. All contents of the De Gruyter Handbook of Digital Criminology are openly accessible. Open access has been funded by the European Research Council, as outlined in the respective chapters, and by the Department of Criminology and Sociology of Law at the University of Oslo. Mareile and Heidi would like to thank Vilde B. Winge for her commitment and excellent research assistance in the realization of this book project. Thanks are also due to Gerhard Boomgaarden and his team at De Gruyter who saw this book through to production.