This article was devoted to the scientific conference "One hundred years of Polish commercial law" and the ceremony of presenting Professor Andrzej Kidyba with the jubilee book on the occasion of the 40th anniversary of his scientific work. The ceremony was divided into two parts: the conference part and the jubilee celebrations. In the course of the conference papers were delivered by: prof. dr h.c. Józef Frąckowiak (University of Wrocław) — "The place of commercial law in the system of law and methods of its implementation", Prof. Wojciech Popiołek (University of Silesia in Katowice) — "Commercial law companies i.e. companies under the law which does not exist" and Prof. Dr. h.c. Bernd Oppermann (Dean of the Faculty of Law, Leibnitz Universität Hannover) — "Challenges of Commercial Law in a Comparative Perspective". The ceremony began with a laudation in honour of Prof. Andrzej Kidyba, delivered by Prof. Wojciech Katner, PhD, of the University of Łódź, who introduced the personality of the Jubilarian. The jubilee book entitled "One hundred years of Polish commercial law" was presented by its editors and the staff of the Chair of Economic and Commercial Law, Maria Curie- Skłodowska University in Lublin. After the presentation of the book the Jubilarian himself gave a speech entitled "My Alphabet — a little confession — not my will".