Annotated translation into Spanish of a sixteenth century manuscript writen in quichi, a Mayan language, just after the conquest, and later copied, and thus preserved, by a Dominican friar. This "commonal book" records a centuries old and rich oral tradition of myths and legends of the peoples of the Mayan jungle. It tells about the origin of the world, its things and animals, and about the final successful creation of man from corn, through the adventures of Hunapz and Ixbalanqui, the boy-gods.