Santiago Martínez Martín was the Artistic Director of the Ibero-American Exhibition from 1925 until its celebration. The emblem of the contest depicting the caravel Santa Maria and the Giralda on a globe is his creation. 

 

He also designed advertising and corporate image items such as hand programs, stamps, and diplomas, as well as various scenes of the Mariana Historical Cavalcade, various urban ornamentation works, such as the Hispalis Fountain at the Puerta de Jerez, executed by the sculptor Manuel Delgado Brackenbury, the Monument to the Race at the entrance of the Exhibition, and the monument of the Álvarez Quintero brothers in the Maria Luisa Park. 

 

​The City Council commissioned him a canvas with life-size figures at the Reception Hall of the Exhibition. The work was frustrated by the advent of the Second Republic, although a sketch of it was preserved.