Georges Léonnec the brother of the novelist Félix Léonnec

Félix Léonnec

Félix Léonnec was a French author and film director. He wrote and directed films between 1916 and 1923. He was the brother of cartoonist and illustrator Georges Léonnec...

, began his career as a cartoonist selling drawings to newspapers in 1899. After participating in World War I

World War I

World War I , which was predominantly called the World War or the Great War from its occurrence until 1939, and the First World War or World War I thereafter, was a major war centred in Europe that began on 28 July 1914 and lasted until 11 November 1918...

 he worked as an illustrator for the magazine La Vie Parisienne

La Vie Parisienne

La Vie Parisienne was a magazine in France founded in 1863 and popular at the turn-of-the-twentieth century. It was originally intended as a guide to upper class and artistic life in Paris , but it soon evolved into a mildly risqué erotic publication...

. He worked for several other publications including Fantasio and Le Sourire. He was also well known for his advertising illustrations for Byrrh

Byrrh

Byrrh is a blend of red wine and quinine or tonic water. Byrrh was created in 1886. It was popular as a French apéritif. with its marketing and reputation as a "hygienic drink," Byrrh sold well in the early twentieth century...

apéritif wine, Dufayel department stores, and the Casino of Paris.