Wincenty Laszewski is a Polish theologian, doctor of dogmatic theology, popular author of many books devoted to Our Lady, especially Marian apparitions. In his publications, he deals mainly with the history of Marian devotion in Europe and with apparitions taking place in various places around the world. He looks for connections between supernatural manifestations and contemporary history. For this reason, he is also interested in the phenomenon of Eucharistic miracles and their resonance in contemporary societies.