Leonetto Cappiello (9. April 1875 in Livorno, Italy – 2. February 1942 in Cannes, France) was an Italian poster art designer who lived in Paris. He is now often called 'the father of modern advertising' because of his innovation in poster design. The early advertising poster was characterized by a painterly quality as evidenced by early poster artists Jules Chéret, Alfred Choubrac and Hugo D'Alesi.
Cappiello, like other young artists, worked in way that was almost the opposite of his predecessors. He was the first poster artist to use bold figures popping out of black backgrounds, a startling contrast to the posters early norm.
Cappiello started his career as a caricaturist illustrating in journals like Le Rire, Le Cri de Paris, Le Sourire, L'Assiette au Beurre, La Baionnette, Femina, and others. His first album of caricatures, "Lanterna Magica," was made in 1896. In 1898, he moved to Paris, and his caricatures were published in Le Rire for the first time.
Cappiello’s career as a poster artist began in earnest in 1900 when he began a contract with the printer Pierre Vercasson. In this period, the printers would act as an agent for artists and commission work to them. Vercasson had a print house, and his goal was to bring vibrant and colour to the streets of Paris, he wanted the posters that he produced to stand out from the rest and attract lucrative new advertisers to his agency. Of course living in Paris, he was aware of the current art scene, and had seen many examples of Cappiello’s work, including a small number of posters already produced and in particular those for Le Frou-Frou. He knew that Cappiello had the potential to be exactly what he was looking for. The relationship commenced with the arrangement that Vercasson would find the clients and brief Cappiello on the product. It was then up to Cappiello to produce a sketch for the client for which he would receive the fee of 500 francs, a good amount at the time. Once the design had been approved by the client a full size design would be produce for the poster at a size of 1x1.4m, an old French paper standard known as the Double Grand Aigle. Cappiello would also be responsible for ensuring the successful transfer of the design onto lithographic stone ready for printing.