G. A. Dvoenosova’s monograph is an attempt at theoretical rethinking of the phenomenon of document in the context of synergistic paradigm. It presents a full-scale structural and functional analysis of document. Based on the principle of causality, the laws of origin and evolution of document have been revealed, the role of document as a system-forming factor has been studied. These questions occupy several chapters in the monograph, where the phenomenon of document is examined in detail from different angles. Document is an interdisciplinary concept included in the dictionaries of many sciences: social, informational, humanitarian, technical, etc. This complicates its study and theoretical comprehension, since each scientific discipline forms its own view of the phenomenon, sets its own accents, and offers its own methods and approaches to its study. Being a classical document expert by education and vocation, G. A. Dvoenosova has made an attempt to integrate the existing knowledge on document into a unified theory based on synergetic toolkit and offered it to the scientific community. The author of the presented monograph is fluent in her material, using a variety of approaches to its interpretation (philosophical, informational, managerial, etc.). Her monograph is characterized by deep historiographic study of its main subjects and by its polemical orientation. Using different research optics, the author reveals the phenomenological nature of document, its systemic characteristics, allowing it to connect space and time, to organize society and structure its information flows. I would like to dwell on the definition of document as materialized memory of humanity. Evaluating the presented theory as an undoubted scientific achievement, it is important to emphasize that synergetic theory of document takes into account and integrates various achievements in the field of theoretical understanding of document as seen in classical document management, communication and information theories of document.