The practice of drawing, before the practice of a particular technique, has always been vital for Jean-Marie Lorson from a very young age. From the age of 14, he offered numerous exhibitions and, for 22 years, he was a member of the Association des Artistes Lorrains in Nancy. He will exhibit in many galleries, including in Paris. In 1944, he opened the Expo Passion boutique in Saint-Mihiel, where he resided, in order to permanently exhibit and exchange with visitors.