Jo Angenot, who signed with Anjo, was one of the main Belgian artists for Pat, the magazine of the National Association of Patronages during the 1940s and 1950s. Starting in 1948, he made stories like 'Bison Loyal', 'Alerte a la Coupole Sud', 'Une Noble Action de Poupi' and 'Eddy et Mamie'. He was also a regular contributor to Petits Belges and Junior. He drew comics in both realistic and caricatural styles.
In the second half of the 1950s, he was present in Tintin magazine with the continuing story 'La Famille Trotinet' and the humorous 'Mottie la Marmotte' series, scripted by René Goscinny.
In the 1960s, he drew numerous "mini-books" for Spirou, starting with 'Didi' in issue 1234 in 1961. Anjo also illustrated two 'Belles Histoires de l'Oncle Paul', some of Cary Page's game pages and wrote and drew several short stories for Spirou's "normal pages" until 1966.