Most, if not all, of the catalogues that were published to accompany the museum exhibits of the five artists who worked with Juan Negrín are out of print and no longer available. These exhibits span various European, US and Mexican venues. We have digitized all of these to make them available on this online archive in the language of publication. All of the catalogues are posted on the English and Spanish sides of this archive regardless of language to keep them together. We apologize to those of you who are not multi-lingual for the lack of an available translation.