He then started drawing cartoons and became an illustrator for many French journals, including Plexus, Planet, Hara-Kiri, Lui, Pariscope and La Vie Electrique.
He incorporated his interest in the fantastic into many of his early lithographs, which were published, sometimes exclusively, in many countries including Japan and Germany[citation needed].
Nezat wrote numerous articles devoted to his art and his work and organized two exhibitions in Germany in 1975 and 1976-1977 that met with great success.
Serre, meanwhile, started drawing cartoons on such topics as medicine, sports, automobiles and DIY, and his first book of cartoons, Black Humor and Men in White, satirising medical professionals, was published in 1972 by Editions Grésivaudan.
A number of similar themed books in the same vein were published by Glénat of Grenoble.