Syndonological research conducted for over a hundred years, focusing mainly on the Shroud of Turin, but also on the Sudarion of Oviedo, the Veil of Manoppello, the Tunica of Argenteuil and the Tilma of Guadalupe. Currently, in many places around the world there are research centers that deal with this issue. Undoubtedly, the leading role in this respect is played by the International Syndonological Center in Turin. In 2017, American, Spanish and Italian centers were joined by a Polish one – the Polish Syndonological Center based in Krakow, which is a branch of the Turin center. In it matured the idea of developing a Syndonological Lexicon, which would summarize over a century of research achievements on the Shroud of Turin and other artifacts related to it. It was developed by a team of scientists affiliated to the following universities: the Jagiellonian University (Kraków), the AGH University of Science and Technology (Kraków), the Pontifical University of John Paul II (Kraków), the University of Gdańsk and the Pontifical University of St. Thomas Aquinas in Rome. Members of the editorial board of the lexicon include members of the Polish Syndonology Centre, and Krzysztof Pilarczyk is the coordinator of the entire project and the editor of the electronic version of the lexicon.