translate English to French: La Potachologie is a natural history textbook detailing the habitat and behaviour of schoolboys; a silly subject put over in a formal style. The eponymous young narrator of Little Nicolas provides enough subtext for the reader to laugh not only at the situation, but also at Nicolas' naive impression of it.
Il travaille également comme scénariste avec plusieurs autres dessinateurs : Morris (Lucky Luke, 1955 - 1977 ), Jean Tabary ( Iznogoud , 1962 - 1977 ), Gotlib (Les dingodossiers, 1965 - 1967 ).