Alberto Sánchez (Toledo, 1895 – Moscow, 1962), known as Alberto, is one of the key artists of the Spanish avant-garde. Self-taught, in 1907 he settled in Madrid, where he soon joined the Socialist Youth. By 1924, he had already participated in Surrealist exhibitions in the city. With Benjamín Palencia, he created the so-called School of Vallecas, which attempted to modernise the country's artistic scene. In 1938, the Republican Government sent him to Moscow as a drawing teacher for exiled Spanish children. The same year, bombing completely destroyed his studio in the Lavapiés district of Madrid and all the works that were stored there, although years later, in Moscow, some of these were remade by the artist. Worked in a highly stylised way, his sculpture fuses elements of popular inspiration with certain Surrealist features. While the first works, from 1920, are indebted to Cubism, in the 1930s he found his own language, closer to Surrealism. Although he never returned from exile, he is strongly linked to twentieth century Spanish art.

In 1932 he signed the manifesto of the Society of Iberian Artists and worked for García Lorca’s La barraca designing the sets and costumes for Fuenteovejuna. He participated in the I Exposición de Arte Revolucionario (1933) and the Muestra del Grupo de Arte Constructivo (1933). In 1936, ADLAN organised a solo exhibition in Madrid and in 1937 he made one of his best-known works for the Pavilion of the Spanish Republic at the Paris International Exposition, where Picasso's Guernica was also being shown. In 2001, this work was produced again and installed in front of the Museo Reina Sofía, Madrid. The Centro de Arte M-11 in Seville dedicated important retrospective exhibitions to his work in 1975.