The Course In Miracles Society has released a Spanish translation of the Original Edition.
Un Curso Sobre Milagros - Edición Original Comentada de la Sociedad Un Curso Sobre Milagros. Traducción de Juan Jesús Zaro y Armando Brons
For those who do not know, the Original Edition contains the unaltered English words of A Course In Miracles transcribed by Helen and Bill, before the ego-mind got hold of it and changes a few things here and there, to make it more "acceptable."
Buy it on http://www.jcim.net/
Cover design by Carmen Cameron, with a little help from me.