Franquin's tenure, which lasted until 1968, is universally recognized as the Golden Age of the franchise. He transformed the series from short, episodic gag strips into complex, book-length adventure stories. Franquin was a master of the dynamic, expressive artistic style known as the Marcinelle school, characterized by rounded cartoonish shapes, highly detailed backgrounds, and a palpable sense of movement.
The Spirou series has undergone several revamps and reinterpretations over the years, with various artists contributing to the series. Notable artists who have worked on Spirou include André Franquin, Jean Roba, and Lewis Trondheim. spirou comic