Cappiello starts his career in executing the caricature of numerous parisian personalities from the beginning of century. In 1899, he has the advisability of doing a poster for the journal “Le Frou-Frou”, then in 1900, for the “Folies-Bergères”. His success is immediate. By his new ideas, he becomes le “father of modern poster”. The essential of his activity will be the poster.

But his talents as an artist are not only this. He makes many portraits and drawings and devotes himself to a lot of others works. We will note, for example, that he realises statuettes, designes costumes and sets for theatre, does the dummy for magazines and journals covers, illustrates books, decorates many house and shop interiors, makes sketchs for tapestry.

In 1928, he designes costumes and sets for several ballets, on Leonid Massine’s and Sacha Guitry’s behalf.

Cappiello realises a large number of covers for programmes, papers, magazines, booklets...

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In 1924 he executes the sketch for tapestry intitled “L’Abondance” ( The plenty) for the Manufacture des Gobelins.

From 1924 to 1928, at the request of Jean Ajalbert, director of the Manufacture de Beauvais, he realises the sketches of two series of tapestries, one of which is intitled “Les Perroquets” ( The parrots) assigned to a living room furniture, the other one “Fleurs et oiseaux” (Flowers and birds) to a dining room.

From 1914 to 1918, war is omnipresent. Cappiello’s mobilization keeps him from doing posters.He goes on drawing, expressing his opposition with Germany and war. At that time his style is completely changed, as these two exemples below give evidence.