The present editorial project brings together for the first time the "Visiones de Xul Solar", a set of texts comprising the visions experimented by expresionist artist Alejandro Xul Solar (b. Argentina 1887-1963) after using the 64 hexagrams of the I Ching, or Book of Changes. "Los Signos" was a collection of 50 texts that Xul Solar organized between 1937 and 1938 with the intention of a later publication. The material corresponds to the visions he started having in 1924 and of which he kept a well documented registry, first in four notebooks (Cuadernos de San Signos) and later in a dactylographic text. This carefully edited book comprises the reproduction and transcription of the Neo-Creole translation into Spanish of Xul Solar's San Signos written in an artificial language of his own invention in Spanish of the notebooks left by Xul Solar and guarded for more than 70 years by the Fundacin Pan Klub. Includes Xul Solar's paintings that related to the transcriptions of his visions, a facet of the artist almost unknown until now.