Jules-Alexandre Grün was a French post-impressionist painter, poster artist, and illustrator.

Grun's best known painting is called The Dinner Party was produced in 1911. It was, however, in the fields of poster art and illustration art, for which he was famous. He was employed at a large printing company in Paris and his artistic director was Jules Cheret

Jules Chéret

Jules Chéret was a French painter and lithographer who became a master of Belle Époque poster art. He has been called the father of the modern poster. -Biography:...

. Cheret was also his main competition in poster art.