He is probably best known for his western children's comics series Yakari, of which he has written the scenario since 1973.

Subsequently, new comics series were commissioned on the basis of reprinting them in a collected form for these markets.

Later on, Tom Puss was turned into a comics series in a stricter sense.

Sylvain et Sylvette, are the main characters of the comics series.

In the comics series he is depicted as being able to turn invisible.

The series is among the most popular comics series in French, with annual sales of nearly 500,000 copies.

Its biggest production is the comics series Blue Evolution.

As a cartoonist, he created the comics series Scuffy, which ran from 1945 to 1951.

Valley was primarily featured between 1992 and 2003, while Lane was the star of a comics series which ran from 2009 to 2011.

Picture books as well as two editions as a comics series have also been published.