This second volume comprehends the issues I (1993) – 28 (2020) of the periodical «Micrologus. Nature, Sciences and Medieval Societies», as well as the volumes of «Micrologus Library», up to its 99th title: it is a total of 127 titles, 28 years of interdisciplinary research dealing with the relationship between Man and Nature from Late Antiquity to the Modern Age. The volume comprehends a list of all the titles of the books and the papers (more than 1,650 items), a list of all the authors involved (860), and a list of all the manuscripts quoted (more than 5,160).