About the book: 2021 / Historical, or historically-oriented, information systems are a significant element of the information environment of the humanities. Its identification is associated with the development of historical informatics and the historically oriented approach, the formation of the information environment, and the practice of creating historical resources. The book contains the results of a study of theoretical and applied problems in the creation and implementation of historically oriented information systems. This is the first comprehensive study on this topic. Some problems are discussed in the book for the first time, while others, although previously reflected in the literature, have not been specifically studied. The publication is addressed to historians, specialists in the field of digital history and digital humanities, as well as developers of digital resources containing historical content or aimed at using historical research and education. Publishing layout saved in PDF A4 format.