Salezy Bogumił Tomczak OFM (Province of St. Francis of Assisi, Poznan) - born 1940, religious profession 1958, priest 1965, specialized studies in library science at the University of Wroclaw (1969-1974), organizer of the Central Library of the Province - Branch of Special Collections - manuscripts and old prints (1968) and the Museum of the Province in Poznan (1972), editor of "Franciscan Studies" since 1982 and the series entitled "Library of Franciscan Studies" since 1997. Lecturer on the history of the Franciscan order at the OFM Major Theological Seminary in Katowice Panewniki (1981-1991) and the OFM Major Theological Seminary in Wronki (since 1991). More important publications: "Biblioteka bernardynów poznańskich w latach 1656–1836” (Library of the Bernardines of Poznan in the years 1656-1836) in Poznań Theological Studies, 4 (1983), pp. 401-422; „Schematyzm Prowincji Wniebowzięcia Najświętszej Maryi Panny Zakonu Braci Mniejszych w Polsce” (Schematism of the Province of the Assumption of the Blessed Virgin Mary of the Order of Friars Minor in Poland) Katowice 1989; „Schematyzm Prowincji św. Franciszka z Asyżu Zakonu Braci Mniejszych w Polsce” (Schematism of the Province of St. Francis of Assisi of the Order of Friars Minor in Poland) Poznań 1999; „Kroniki Bernardynów poznańskich” (Chronicles of the Bernardines of Poznan) Poznań 2002 (Introduction, pp. VII-XXII + footnotes); „Antologia modlitwy franciszkańskiej” (Anthology of Franciscan Prayer) part one, Poznań 2003; „Antologia modlitwy franciszkańskiej” (Anthology of Franciscan Prayer) part two, Poznań 2012; „Kronika Reformatów poznańskich” (Chronicle of the Poznań Reformati) Poznań 2006 (Introduction, pp. 1-17 + footnotes); „Niezwykli franciszkanie XX/XXI stulecia” (Unusual Franciscans of the XX/XXI centuries) (editor and author of several biographies) part one, Poznań 2010, part two, Poznań 2012, part three, Poznań 2018, part four, Poznań 2020; author of nearly 300 scientific and popular science articles, biographies, obituaries, reports.