As a student at the Sousse College, Georges Massa experimented very early with landscape painting but never fully dedicated himself to his art. Indeed, it was alongside his career in the postal administration and his commitment to the service of youth hostels and youth travel that he devoted himself to painting. Self-taught, he met Robert Caulet, a drawing teacher, in Sousse, who encouraged and advised him. In 1937, he decorated a banquet hall there and collaborated with Robert Caulet on various projects. In 1939, he was tasked with the decor of the Lille youth hostel and was commissioned for posters. Between 1945 and 1954, he came into contact with the most renowned painters in Tunisia (Moses Lévy, Jules Lellouche, Robert Hue, Abdelaziz Gorgi...) while his duties in the postal administration involved frequent travel. These trips allowed him to paint on-site in Djerba, Gabès, Monastir, El Jem, Mahdia, and Tabarka. Georges Massa exhibited from 1949 to 1953 at the Tunisian Salon. In 1953, the Tunisian government acquired "Rue à Barcelone," which he exhibited at the Tunisian Salon that same year. He also participated in the Arte Salon in Tunis, founded in 1954 by artists from the postal administration, as well as at the French Alliance in the same city. Settled in France, he continued to return to Tunisia and paint there. From 1956 to 2000, Georges Massa participated in numerous collective exhibitions and had several solo exhibitions dedicated to him. In 1994, he presented 54 works on Tunisia at the Marseille Chamber of Commerce during the "Tunisia, the Green" day. On that occasion, the event's president, Lotfi Hamdi, wrote to him: "Your presence at the cultural day of 'Tunisia, the Green' confirms your love for Tunisia, your homeland forever...". A prolific artist, he created no less than 7,000 watercolors and 300 drawings. Georges Massa traveled and painted in many countries (Spain, Israel, Italy, Turkey, Greece, Egypt). Finally, he exhibited in London, Rome, and Luxembourg.