Review of: Jenkins, F. W. (2021). Ammianus Marcellinus: An Annotated Bibliography 1474 to the Present. Leiden: Brill. xviii, 665 p. This review reveals the meaning, content, and main advantages and disadvantages of a unique bibliographic compendium presenting scholarly materials concerning the Res Gestae (Acts), i.e. works of Ammianus Marcellinus, the greatest historian of late Antiquity. The article demonstrates that the structure of the bibliography, segmented chronologically within the framework of 1474-2016, allows a specialist not only to obtain information about the Res Gestae and their epoch needed for research, but also demonstrates several features of the development of research based on this historical source for the first time in historiography. Based on the bibliography created by F. Jenkins, it is possible to identify a special increase in the interest of historians and philologists in Ammianus’ work, to the works of his contemporaries and epigones, which, in turn, makes it possible to see new sides in the development of historiography of sociocultural processes of the fourth and fifth centuries. The author’s scrupulousness as a bibliographer is noteworthy, and so it is as an expert on the main historiographical trends for several centuries when the work of Ammianus was published and studied.