Jean-Jacques Loup was a popular French cartoonist, who is best known for his many crowded and detailed drawings for jigsaw puzzles. He studied at the National School of Fine Arts in Lyon, and was an architect and jazz pianist. He worked in Paris as a cartoonist from 1969 until his death in 2015.
During the 1970s and early 1980s, he was present in magazines like Mormoil, Fluide Glacial, L'Express, Le Canard Enchaîné, Charlie Mensuel, Libération, Playboy and Marie-Claire. He was editorial illustrator for VSD for 15 years. Album collections of his work have been published by Audie ('Touti Frouti', 1977), Dargaud ('La Bible de...', 1984) and Glénat ('La Vie des Maitres' parts 1 and 2, 1983-85).