His works reflect his attraction to the subconscious, to the "child spirit" and to his country. In his early years, he showed strong Fauvist, Cubist and Expressionist influences, before turning to flat painting with a certain naiveté . The painting entitled La Ferme, painted in 1921, is one of the most famous paintings of the period.
After moving to Paris, his work becomes more dreamlike, which corresponds with the main currents of the Surrealist movement to which he is attached. In numerous interviews and writings from the 1930s, Miró manifests his desire to abandon conventional methods of painting in order to, in his own words, "kill them, murder them or rape them," thus promoting a contemporary form of expression. He does not want to meet any requirements, neither aesthetics and its methods, nor surrealism .
In his honor, the Joan-Miró Foundation was established in Barcelona in 1975 . It is a cultural and artistic center dedicated to presenting new trends in contemporary art. It is initially fed by a large fund offered by a teacher. Other places have important collections of Miró's works, such as the Pilar and Joan Miró Foundation in Palma de Mallorca, the Musée National d'art moderne de Paris, the Musée d'art moderne de Lille and the Museum of Modern art of New York .